It is a great misfortune to be of use to nobody; scarcely less to be of use to everybody.

Quit while you're ahead. All the best gamblers do.

Know how to keep anticipation alive: always strive to feed it, by letting the much promise more, and the one achievement be the announcement only of a greater. Put not all your reserves into the first throw; the great trick is to dole out strength, and to dole out mind, in such a fashion as to bring forward increasingly the fulfillment of what was expected of you.

He that communicates his secret to another makes himself that other's slave.

The wise are always impatient, for he that increases knowledge increases impatience of folly.

It is better to have too much courtesy than too little, provided you are not equally courteous to all, for that would be injustice.

The best skill at cards is knowing when to discard.