The open mind never acts: when we have done our utmost to arrive at a reasonable conclusion, we still must close our minds for the moment with a snap, and act dogmatically on our conclusions.

Oh, the frontier of hell and heaven is only the difference between two ways of looking at things.

Unless comedy touches me as well as amuses me, it leaves me with a sense of having wasted my evening. I go to the theatre to be moved to laughter, not to be tickled or bustled into it.

The 100% American is 99% idiot.

I would exchange every painting of Christ for one snapshot.

No severity of punishment deters when detection is uncertain, as it always must be.

You do not settle whether an argument is justified by merely showing that it is of some use. The distinction is not between useful and useless experiments but between barbarous and civilized behaviour. Vivisection is a social evil because if it advances human knowledge, it does so at the expense of human character.