Barbaric accuracy - whimpering humility.

Doubt everything at least once, even the sentence "Two times two is four."

Man is a masterpiece of creation if for no other reason than that, all the weight of evidence for determinism notwithstanding, he believes he has free will.

There is a great difference between believing in something and believing in it again.

The great trick of regarding small departures from the truth as the truth itself - on which is founded the entire integral calculus - is also the basis of our witty speculations, where the whole thing would often collapse if we considered the departures with philosophical rigour.

Most men of education are more superstitious than they admit - nay, than they think.

It is a great shame; most of our words are misused tools / which often still smell of the mud in which previous owners / desecrated them.