He who eats alone chokes alone.

It was morality that burned the books of the ancient sages, and morality that halted the free inquiry of the Golden Age and substituted for it the credulous imbecility of the Age of Faith. It was a fixed moral code and a fixed theology which robbed the human race of a thousand years by wasting them upon alchemy, heretic-burning , witchcraft and sacerdotalism.

Bridges would not be safer if only people who knew the proper definition of a real number were allowed to design them.

The average schoolmaster is, and always must be, an ass.

The best years are the forties; after fifty a man begins to deteriorate, but in the forties he is at the maximum of his villainy.

The essential dilemma of education is to be found in the fact that the sort of man (or woman) who knows a given subject sufficiently well to teach it is usually unwilling to do so.

One yearns unspeakably for a composer who gives out his pair of honest themes, and then develops them unashamed, and then hangs a brisk coda to them, and then shuts up.