No arts; no letters; no society; and which is worst of all, continual fear, and danger of violent death; and the life of man, solitary, poor, nasty, brutish, and short.

You can tell whether a man is clever by his answers. You can tell whether a man is wise by his questions.

Phenomena are the outer expressions of hidden essences.

I always felt that my greatest asset was not my physical ability, it was my mental ability.

Probability theory is nothing but common sense reduced to calculation.

真相并不总是我们想听的，但它是我们需要知道的。