Do not say hypothesis, and even less theory: say way of thinking.

To make a vow is a greater sin than to break one.

To err is human also in so far as animals seldom or never err, or at least only the cleverest of them do so.

There are people who possess not so much genius as a certain talent for perceiving the desires of the century, or even of the decade, before it has done so itself.

Even truth needs to be clad in new garments if it is to appeal to a new age.

Nothing reveals a man's character better than the kind of joke at which he takes offense.

Barbaric accuracy - whimpering humility.