Veracity is the heart of morality.

No delusion is greater than the notion that method and industry can make up for lack of mother-wit, either in science or in practical life.

I cannot say that I am in the slightest degree impressed by your bigness, or your material resources, as such. Size is not grandeur, and territory does not make a nation. The great issue, about which hangs true sublimity, and the terror of overhanging fate, is what are you going to do with all these things?

Genius, as an explosive power, beats gunpowder hollow.

Logical consequences are the scarecrows of fools and the beacons of wise men.

Oh devil! truth is better than much profit. I have searched over the grounds of my belief, and if wife and child and name and fame were all to be lost to me one after the other as the penalty, still I will not lie.

If individuality has no play, society does not advance; if individuality breaks out of all bounds, society perishes.