Doubt is the origin of wisdom.
RENE DESCARTESBad books engender bad habits, but bad habits engender good books.
More Rene Descartes Quotes
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The reading of all good books is like conversation with the finest men of past centuries.
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The will determines itself; it should not be described as blind, any more than vision should be described as deaf.
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I took especially great pleasure in mathematics because of the certainty and the evidence of its arguments.
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To think? That’s it. It is thought. This alone cannot be detached from me. I am, I exist; that is certain.
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Except our own thoughts, there is nothing absolutely in our power.
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He who hid well, lived well.
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When it is not in our power to determine what it true, we ought to follow what is most probable.
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For I found myself embarrassed with so many doubts and errors that it seemed to me that the effort to instruct myself had no effect other than the increasing discovery of my own ignorance
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I suppose therefore that all things I see are illusions; I believe that nothing has ever existed of everything my lying memory tells me.
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To know what people really think, pay attention to what they do, rather than what they say.
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One should never judge anything unless it is known
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Divide each difficulty into as many parts as is feasible and necessary to resolve it.
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I am accustomed to sleep and in my dreams to imagine the same things that lunatics imagine when awake.
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Masked, I advance.
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But in my opinion, all things in nature occur mathematically.
RENE DESCARTES






