Each nation knowing it has the only true religion and the only sane system of government, each despising all the others, each an ass and not suspecting it.

France has usually been governed by prostitutes

Familiarity breeds contempt. How accurate that is. The reason we hold truth in such respect is because we have so little opportunity to get familiar with it.

Behold, the fool saith, "Put not all thine eggs in the one basket" - which is but a matter of saying, "Scatter your money and your attention"; but the wise man saith, "Pull all your eggs in the one basket and - WATCH THAT BASKET." - Pudd'nhead Wilson's Calendar

Every man feels that his experience is unlike that of anybody else and therefore he should write it down-- he finds also that everybody else has thought and felt on some points precisely as he has done, and therefore he should write it down.

Children have but little charity for one another's defects

The more things are forbidden, the more popular they become.