Nothing seems to me more doubtful than Aristotle's remark that it is probable the arts and philosophy have several times been discovered and several times lost.

I shall go further and say that even if an examination of the past could lead to any valid prediction concerning man's future, that prediction would be the contrary of reassuring.

And History will smile to think that this is the species for which Socrates and Jesus Christ died.

The man of science, the artist, the philosopher are attached to their nations as much as the day-laborer and the merchant.

Aristotle may be regarded as the cultural barometer of Western history. Whenever his influence dominated the scene, it paved the way for one of history's brilliant eras; whenever it fell, so did mankind.

Nothing makes me laugh more than farting.