Nature in her unfathomable designs had mixed us of clay and flame, of brain and mind, that the two things hang indubitably together and determine each other's being but how or why, no mortal may ever know.

I don't sing because I'm happy; I'm happy because I sing.

Truth is one species of good, and not, as is usually supposed, a category distinct from good, and co-ordinate with it

As there is no worse lie than a truth misunderstood by those who hear it, so reasonable arguments, challenges to magnanimity, and appeals to sympathy or justice, are folly when we are dealing with human crocodiles and boa-constrictors.

It is wrong always, everywhere, and for everyone, to believe anything upon insufficient evidence.

Pretend what we may, the whole man within us is at work when we form our philosophical opinions. Intellect, will, taste, and passion co-operate just as they do in practical affairs; and lucky it is if the passion be not something as petty as a love of personal conquest over the philosopher across the way.

Mankind's common instinct for reality has always held the world to be essentially a theatre for heroism.