"Divide each difficulty into as many parts as is feasible and necessary to resolve it."
Philosopher
"I think, therefore I am."
"The reading of all good books is like a conversation with the finest minds of past centuries."
"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."
"Mathematics is a more powerful instrument of knowledge than any other that has been bequeathed to us by human agency."
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