Walking has the best value as gymnastics of the mind.

The best university that can be recommended to a man of ideas is the gauntlet of the mob.

Pride eradicates all vices but itself.

Machinery is aggressive. The weaver becomes a web, the machinist a machine. If you do not use the tools, they use you. All tools are in one sense edge-tools, and dangerous.

Surely nobody would be a charlatan, who could afford to be sincere.

What I must do is all that concerns me, not what the people think.

It is long ere we discover how rich we are. Our history, we are sure, is quite tame: we have nothing to write, nothing to infer. But our wiser years still run back to the despised recollections of childhood, and always we are fishing up some wonderful article out of that pond; until, by and by, we begin to suspect that the biography of the one foolish person we know is, in reality, nothing less than the miniature paraphrase of the hundred volumes of the Universal History.