I am a thinking thing, a substance whose whole essence or nature consists in thinking, and there is no need of any place, nor does it depend on any material thing.
Cogito ergo sum
Meditations on First Philosophy, Meditation II
1641
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"I have never found anything in the works of the ancient philosophers that compares to the certainty I have found in mathematics."
Shocking"I desire to live, and to continue the studies I have begun, but I have not found anyone who could tell me where to go."
Shocking"The existence of God is clearly demonstrated by the very idea of God."
Controversial"For the mind is not nourished by anything but truth."
Strange & Unusual"The mind is a substance whose whole essence or nature consists only of thinking."
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