The mind is a substance whose whole essence or nature is to think, and which needs no place, nor depends on any material thing, in order to exist.
Cogito ergo sum
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"The custom of believing what others believe, and of doing what others do, is the most powerful obstacle to the discovery of truth."
Strange & Unusual"Whenever anyone has offended me, I try to raise my soul so high that the offense cannot reach it."
Controversial"I have long ago observed that in order to study the truth, it is necessary once in the course of our life to demolish everything completely and start again from the foundations."
Shocking"The greatest good is to live without pain."
Strange & Unusual"The chief cause of human error is the confused nature of our perceptions."
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