Make it a rule never to give a child a book you would not read yourself.

We are members one of another; so that you cannot injure or help your neighbor without injuring or helping yourself.

Fashions are induced epidemics.

Reasonable men adapt themselves to their environment; unreasonable men try to adapt their environment to themselves. Thus all progress is the result of the efforts of unreasonable men.

You can be a thorough-going Neo-Darwinian without imagination, metaphysics, poetry, conscience, or decency. For 'Natural Selection' has no moral significance: it deals with that part of evolution which has no purpose, no intelligence, and might more appropriately be called accidental selection, or better still, Unnatural Selection, since nothing is more unnatural than an accident. If it could be proved that the whole universe had been produced by such Selection, only fools and rascals could bear to live.

Every man is a revolutionist concerning the thing he understands. For example, every person who has mastered a profession is a skeptic concerning it, and consequently a revolutionist.

If more than ten percent of the public likes a painting, it should be burned.