| 430 | Senses are no use if the soul is corrupt [Heraclitus] |
| 3058 | Only reason can prove the truth of facts [Parmenides] |
| 20897 | Obscure knowledge belongs to the five senses, and genuine knowledge is the other type [Democritus] |
| 517 | All evidence comes from senses, so they are indispensable to the mind [Democritus] |
| 151 | True knowledge is of the reality behind sense experience [Plato] |
| 2162 | If theory and practice conflict, the best part of the mind accepts theory, so the other part is of lower grade [Plato] |
| 1637 | A soul without understanding is ugly [Plato] |
| 2068 | With what physical faculty do we perceive pairs of opposed abstract qualities? [Plato] |
| 2069 | Thought must grasp being itself before truth becomes possible [Plato] |
| 2078 | You might mistake eleven for twelve in your senses, but not in your mind [Plato] |
| 334 | Only bird-brained people think astronomy is entirely a matter of evidence [Plato] |
| 1726 | We may think when we wish, but not perceive, because universals are within the mind [Aristotle] |
| 23312 | Aristotle is a rationalist, but reason is slowly acquired through perception and experience [Aristotle, by Frede,M] |
| 22748 | Some say motion is perceived by sense, but others say it is by intellect [Sext.Empiricus] |
| 22117 | Our minds grasp reality by direct illumination (rather than abstraction from experience) [Augustine, by Matthews] |
| 20224 | Sensation prepares the way for intellectual knowledge, which needs the virtues of reason [Aquinas] |
| 3611 | Understanding, rather than imagination or senses, gives knowledge [Descartes] |
| 2263 | The wax is not perceived by the senses, but by the mind alone [Descartes] |
| 3627 | Dogs can make the same judgements as us about variable things [Gassendi on Descartes] |
| 2264 | We don't 'see' men in heavy clothes, we judge them to be men [Descartes] |
| 2265 | We perceive objects by intellect, not by senses or imagination [Descartes] |
| 22011 | The first principles of truth are not rational, but are known by the heart [Pascal] |
| 4865 | The eyes of the mind are proofs [Spinoza] |
| 2110 | We all expect the sun to rise tomorrow by experience, but astronomers expect it by reason [Leibniz] |
| 4302 | You may experience a universal truth, but only reason can tell you that it is always true [Leibniz] |
| 12930 | The senses are confused, and necessities come from distinct intellectual ideas [Leibniz] |
| 12947 | We only believe in sensible things when reason helps the senses [Leibniz] |
| 5569 | We cannot represent objects unless we combine concepts with intuitions [Kant] |
| 19572 | Experiences tests reason, and reason tests experience [Novalis] |
| 15625 | Sense perception is secondary and dependent, while thought is independent and primitive [Hegel] |
| 21577 | Empirical truths are particular, so general truths need an a priori input of generality [Russell] |
| 5200 | The main claim of rationalism is that thought is an independent source of knowledge [Ayer] |
| 4303 | The notion of substance lies at the heart of rationalist metaphysics [Cottingham] |
| 8880 | In reducing arithmetic to self-evident logic, logicism is in sympathy with rationalism [Sosa] |
| 2504 | Rationalism can be based on an evolved computational brain with innate structure [Fodor] |
| 3704 | Moderate rationalists believe in fallible a priori justification [Bonjour] |
| 3707 | Our rules of thought can only be judged by pure rational insight [Bonjour] |
| 2729 | Virtually all rationalists assert that we can have knowledge of synthetic a priori truths [Audi,R] |
| 2741 | The principles of justification have to be a priori [Audi,R] |
| 8725 | Rationalism tries to apply mathematical methodology to all of knowledge [Shapiro] |
| 17705 | Empiricists say rationalists mistake imaginative powers for modal insights [Mares] |
| 6576 | My view is 'circumspect rationalism' - that only our intellect can comprehend the world [Fogelin] |