Intuition is the source of scientific knowledge.

Aristotle
Profession: Philosopher
Nationality: Greek
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For though we love both the truth and our friends, piety requires us to honor the truth first.
For this alone is lacking even to God, to make undone the things that have once been done.
Shall we not, like archers who have a mark to aim at, be more likely to hit upon what is right?
Whatever lies within our power to do lies also within our power not to do.
Comedy has had no history, because it was not at first treated seriously.