Rene Descartes Quotes
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When I consider this carefully, I find not a single property which with certainty separates the waking state from the dream. How can you be certain that your whole life is not a dream?
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Whatever I have up till now accepted as most true and assured I have gotten either from the senses or through the senses. But from time to time I have found that the senses deceive, and it is prudent never to trust completely those who have deceived us even once.
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The senses deceive from time to time, and it is prudent never to trust wholly those who have deceived us even once.
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If you would be a real seeker after truth, it is necessary that at least once in your life you doubt, as far as possible, all things.
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Good sense is, of all things among men, the most equally distributed; for every one thinks himself so abundantly provided with it, that those even who are the most difficult to satisfy in everything else, do not usually desire a larger measure of this quality than they already possess.
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Travelling is almost like talking with those of other centuries.
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It is contrary to reasoning to say that there is a vacuum or space in which there is absolutely nothing.
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Even those who have the weakest souls could acquire absolute mastery over all their passions if we employed sufficient ingenuity in training and guiding them.
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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... chance that I arrive at the truth, and I shall still be at fault.... In this incorrect use of free will may be found the privation which constitutes the essence of error.
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I am thing that thinks: that is, a things that doubts,affirms, denies, understands a few things, is ignorant of many things, is willing, is unwilling, and also which imagines and has sensory perceptions.
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It's the familiar love – hate syndrome of seduction: "I don't really care what it is I say, I care only that you like it."
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I can doubt everything, except one thing, and that is the very fact that I doubt. Simply put - I think, therefore I am.
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I have concluded the evident existence of God, and that my existence depends entirely on God in all the moments of my life, that I do not think that the human spirit may know anything with greater evidence and certitude.
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There is a difference between happiness, the supreme good, and the final end or goal toward which our actions ought to tend. For happiness is not the supreme good, but presupposes it, being the contentment or satisfaction of the mind which results from possessing it.
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Some years ago I was struck by the large number of falsehoods that I had accepted as true in my childhood, and by the highly doubtful nature of the whole edifice that I had subsequently based on them. I realized that it was necessary, once in the course of my life, to demolish everything completely and start again right from the foundations if I wanted to establish anything at all in the sciences that was stable and likely to last.
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If ... it is not in my power to arrive at the knowledge of any truth, I may at least do what is in my power, namely, suspend judgement.
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A person has two passions for love and abhorrence. A big disposition to excessiveness has just a love, because it is more ardent and stronger.
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How can you be certain that your whole life is not a dream?
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I should consider that I know nothing about physics if I were able to explain only how things might be, and were unable to demonstrate that they could not be otherwise.
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It is best not to go on for great quest for truth , it will only make you miserable.
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You just keep pushing. You just keep pushing. I made every mistake that could be made. But I just kept pushing.
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Even the mind depends so much on temperament and the disposition of one's bodily organs that, if it is possible to find a way to make people generally more wise and more skilful than they have been in the past, I believe that we should look for it in medicine. It is true that medicine as it is currently practiced contains little of much use.
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So far, I have been a spectator in this theater which is the world, but I am now about to mount the stage, and I come forward masked.
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Divide each difficulty into as many parts as is feasible and necessary to resolve it.