Custom alone regulates morals.

The wonder is, not that the field of stars is so vast, but that man has measured it.

One thing above all gives charm to men's thoughts, and this is unrest. A mind that is not uneasy irritates and bores me.

A people living under the perpetual menace of war and invasion is very easy to govern. It demands no social reform. It does not haggle over expenditures for armaments and military equipment. It pays without discussion, it ruins itself, and that is an excellent thing for the syndicates of financiers and manufacturers for whom patriotic terrors are an abundant source of gain.

Without the Utopians of other times, men would still live in caves, miserable and naked. It was Utopians who traced the lines of the first City.....Out of generous dreams come beneficial realities. Utopia is the principle of all progress, and the essay into a better future.

Never lend books, for no one ever returns them

Custom alone regulates morals.