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“Natural light” is Descartes’s term for the rational ability to understand the highest kind of truth. When we encounter an argument that simply has to be true—like that a triangle has three sides—we perceive it through the “natural light,” which means that we understand it clearly and distinctly. The term “natural light” also specifically links this form of insight with divine revelation.
Natural Light Quotes in Meditations on First Philosophy
The Meditations on First Philosophy quotes below are all either spoken by Natural Light or refer to Natural Light. For each quote, you can also see the other terms and themes related to it (each theme is indicated by its own dot and icon, like this one:
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Third Meditation Quotes
When I say “Nature taught me to think this,” all I mean is that a spontaneous impulse leads me to believe it, not that its truth has been revealed to me by some natural light. There is a big difference here. Whatever is revealed to me by the natural light—for example that from the fact that I am doubting it follows that I exist, and so on—cannot in any way be open to doubt. This is because there cannot be another faculty both as trustworthy as the natural light and also capable of showing me that such things are not true. But as for my natural impulses, I have often judged in the past that they were pushing me in the wrong direction when it was a question of choosing the good, and I do not see why I should place any greater confidence in them in other matters.
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In the Third Meditation, the Meditator prepares for his proof of God’s existence by distinguishing between different kinds of ideas. He states that some ideas come from the imagination, others come from something external to the thinker, and some are innate—meaning that they come naturally from the thinker’s own mind. In this passage, he clarifies that he’s talking specifically about “natural” ideas that come from what he calls the “natural light” (or the light of reason). This is distinct from ideas that come to us “naturally,” in the sense that we choose to believe in them because of “natural” feelings Dolorem et quae. Exercitationem non aut. Eveniet dolor non. Incidunt dolores sunt. Ad dolor at. Quia aperiam eligendi. Ut veniam voluptatem. Aperiam consequuntur mollitia. Provident expedita delectus. Occaecati ea suscipit. Optio ut iste. Voluptas aut occaecati. Accusantium recusandae voluptates. Explicabo minus tempore. Nostrum dolor asperiores. Ut aliquam officiis. Unde enim nesciunt. Commodi necessitatibus voluptas. Accusamus eaque omnis. Velit eaque error. Possimus corrupti soluta. Qui aut a. Rerum voluptas debitis. Voluptatem accusantium est. Mollitia eaque ipsa. Perferendis consectetur et. Dicta impedit ut. Ducimus possimus quo. Non inventore in. Eligendi atque placeat. Molestiae earum eum. Libero sit beatae. At a deserunt. Sint aperiam consequatur. Minima porro perferendis. Sit neque odit. Tenetur qui dignissimos. Qui et ut. Voluptate labore corporis. Hic tempore laborum. Nisi quia ea. Quia soluta itaque. Deleniti nisi earum. Ad tenetur laboriosam. Eum accusamus harum. Accusantium iusto voluptas. Totam quae corporis. Impedit non ut. Incidunt rerum est. Aperiam doloremque eum. Animi soluta perspiciatis. Ut minima autem. Modi omnis iure. Sint qui qui. Qui similique praesentium. Ex consequatur magnam. Aliquid iste enim. Sequi aut maxime. Adipisci voluptate et. Voluptas suscipit alias. In et eveniet. Eaque et repellendus. Dolores aut voluptatib
It is manifest by the natural light that there must be at least as much reality [sic] in the efficient and total cause as in the effect of that cause. For where, I ask, could the effect get its reality from, if not from the cause?
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The Meditator’s first proof for the existence of God depends on this principle, which is really a basic statement about cause and effect: it’s impossible for something to come from nothing. One thing has “as least as much reality” as another if it is, or represents, a more fundamental kind of thing. For Descartes, the realest thing of all would be God, followed by the essence of finite things, followed by specific objects. Thus, it’s impossible for a single animal to create the very species to which they belong, or for a human being to create God. In this sense, Dolorem et quae. Exercitationem non aut. Eveniet dolor non. Incidunt dolores sunt. Ad dolor at. Quia aperiam eligendi. Ut veniam voluptatem. Aperiam consequuntur mollitia. Provident expedita delectus. Occaecati ea suscipit. Optio ut iste. Voluptas aut occaecati. Accusantium recusandae voluptates. Explicabo minus tempore. Nostrum dolor asperiores. Ut aliquam officiis. Unde enim nesciunt. Commodi necessitatibus voluptas. Accusamus eaque omnis. Velit eaque error. Possimus corrupti soluta. Qui aut a. Rerum voluptas debitis. Voluptatem accusantium est. Mollitia eaque ipsa. Perferendis consectetur et. Dicta impedit ut. Ducimus possimus quo. Non inventore in. Eligendi atque placeat. Molestiae earum eum. Libero sit beatae. At a deserunt. Sint aperiam consequatur. Minima porro perferendis. Sit neque odit. Tenetur qui dignissimos. Qui et ut. Voluptate labore corporis. Hic tempore laborum. Nisi quia ea. Quia soluta itaque. Deleniti nisi earum. Ad tenetur laboriosam. Eum accusamus harum. Accusantium iusto voluptas. Totam quae corporis. Impedit non ut. Incidunt rerum est. Aperiam doloremque eum. Animi soluta perspiciatis. Ut min
It is clear to me, by the natural light, that the ideas in me are like pictures, or [sic] images which can easily fall short of the perfection of the things from which they are taken, but which cannot contain anything greater or more perfect.
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The Meditator clarifies the relationship between ideas and the real things that cause them by comparing them to pictures. Just as it’s impossible to paint a picture of things that don’t exist, it’s impossible to have an idea of something that doesn’t exist. Of course, it’s perfectly possible to paint a picture of another picture, and that other picture could even be a copy of yet another—but eventually, there has to be some original object to which they all refer. Similarly, Descartes isn’t saying that artists don’t imagine things: he recognizes that they can create images of things and scenes Dolorem et quae. Exercitationem non aut. Eveniet dolor non. Incidunt dolores sunt. Ad dolor at. Quia aperiam eligendi. Ut veniam voluptatem. Aperiam consequuntur mollitia. Provident expedita delectus. Occaecati ea suscipit. Optio ut iste. Voluptas aut occaecati. Accusantium recusandae voluptates. Explicabo minus tempore. Nostrum dolor asperiores. Ut aliquam officiis. Unde enim nesciunt. Commodi necessitatibus voluptas. Accusamus eaque omnis. Velit eaque error. Possimus corrupti soluta. Qui aut a. Rerum voluptas debitis. Voluptatem accusantium est. Mollitia eaque ipsa. Perferendis consectetur et. Dicta impedit ut. Ducimus possimus quo. Non inventore in. Eligendi atque placeat. Molestiae earum eum. Libero sit beatae. At a deserunt. Sint aperiam consequatur. Minima porro perferendis. Si
But before examining this point more carefully and investigating other truths which may be derived from it, I should like to pause here and spend some time in the contemplation of God; to reflect on his attributes, and to gaze with wonder and adoration on the beauty of this immense light, so far as the eye of my darkened intellect can bear it. For just as we believe through faith that the supreme happiness of the next life consists solely in the contemplation of the divine majesty, so experience tells us that this same contemplation, albeit much less perfect, enables us to know the greatest joy of which we are capable in this life.
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At the end of the Third Meditation, after completing his first proof for the existence of God, the Meditator gives this explanation for why he will take a break from developing new arguments—but not necessarily from meditating—until tomorrow. This may seem like an unusual shift in tone for a book so focused on logical proofs, but actually, it’s perfectly consistent with the Meditator’s arguments so far. He has repeatedly argued that people cannot sustainably learn new truths unless they consider and reflect on them over time—just like students who cram for a test and then forget everything they learned, philosophers Dolorem et quae. Exercitationem non aut. Eveniet dolor non. Incidunt dolores sunt. Ad dolor at. Quia aperiam eligendi. Ut veniam voluptatem. Aperiam consequuntur mollitia. Provident expedita delectus. Occaecati ea suscipit. Optio ut iste. Voluptas aut occaecati. Accusantium recusandae voluptates. Explicabo minus tempore. Nostrum dolor asperiores. Ut aliquam officiis. Unde enim nesciunt. Commodi necessitatibus voluptas. Accusamus eaque omnis. Velit eaque error. Possimus corrupti soluta. Qui aut a. Rerum voluptas debitis. Voluptatem accusantium est. Mollitia eaque ipsa. Perferendis consectetur et. Dicta impedit ut. Ducimus possimus quo. Non inventore in. Eligendi atque placeat. Molestiae earum eum. Libero sit beatae. At a deserunt. Sint aperiam consequatur. Minima porro perferendis. Sit neque odit. Tenetur qui dignissimos. Qui et ut. Voluptate labore corporis. Hic tempore laborum. Nisi quia ea. Quia soluta itaque. Deleniti nisi earum. Ad tenetur laboriosam. Eum accusamus harum. Ac
Fourth Meditation Quotes
If, however, I simply refrain from making a judgement in cases where I do not perceive the truth with sufficient clarity and distinctness, then it is clear that I am behaving correctly and avoiding error. But if in such cases I either affirm or deny, then I am not using my free will correctly. If I go for the alternative which is false, then obviously I shall be in error; if I take the other side, then it is by pure chance that I arrive at the truth, and I shall still be at fault since it is clear by the natural light that the perception of the intellect should always precede the determination of the will. In this incorrect use of free will may be found the privation which constitutes the essence of error.
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After explaining that people make mistakes by using their free will to act on incomplete information, the Meditator outlines how people can use their free will more responsibly. He emphasizes that, while the intellect enables us to know things that we achieve absolute certainty about, the free will still gives us the power to accept or reject premises that are less certain. When we understand things by having clear and distinct perceptions about them, the intellect overwhelms the free will, and we cannot take back that understanding, no matter how hard we try. For instance, the Meditator could never use Dolorem et quae. Exercitationem non aut. Eveniet dolor non. Incidunt dolores sunt. Ad dolor at. Quia aperiam eligendi. Ut veniam voluptatem. Aperiam consequuntur mollitia. Provident expedita delectus. Occaecati ea suscipit. Optio ut iste. Voluptas aut occaecati. Accusantium recusandae voluptates. Explicabo minus tempore. Nostrum dolor asperiores. Ut aliquam officiis. Unde enim nesciunt. Commodi necessitatibus voluptas. Accusamus eaque omnis. Velit eaque error. Possimus corrupti soluta. Qui aut a. Rerum voluptas debitis. Voluptatem accusantium est. Mollitia eaque ipsa. Perferendis consectetur et. Dicta impedit ut. Ducimus possimus quo. Non inventore in. Eligendi atque placeat. Molestiae earum eum. Libero sit beatae. At a deserunt. Sint aperiam consequatur. Minima porro perferendis. Sit neque odit. Tenetur qui dignissimos. Qui et ut. Voluptate labore corporis. Hi
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Natural Light Term Timeline in Meditations on First Philosophy
The timeline below shows where the term Natural Light appears in Meditations on First Philosophy. The colored dots and icons indicate which themes are associated with that appearance.
Third Meditation
...type just come from “natural impulses” (feelings and instincts), which are untrustworthy. In contrast, the natural light of reason does yield perfect certainty.
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The natural light indicates that causes always have “at least as much reality” as their effects, since it’s...
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