I think, therefore I am.

Good sense is the most evenly distributed thing in the world.

Divide each difficulty into as many parts as possible for a better solution.

I think, therefore I am.

To teach superstitions as truth is a most terrible thing.

-- Hypatia

Fables should be taught as fables, myths as myths, and miracles as poetic fancies.

-- Hypatia

I think, therefore I am.

-- René Descartes

A great many people think they are thinking when they are merely rearranging their prejudices.

-- William James

I much prefer the sharpest criticism of a single intelligent man to the thoughtless approval of the masses.

-- Johannes Kepler

The duty of the man who investigates the writings of scientists, if learning the truth is his goal, is to make himself an enemy of all that he reads.

-- Ibn al-Haytham