All is riddle, and the key to a riddle is another riddle.

What matter is not to add years to your life but to add life to your years.

Be notdisturbed at being misunderstood; be disturbed at not understanding.

Never trust the advice of a man in difficulties.

No one was ever really taught by another; each of us has to teach himself.

Prejudice is a disease characterised by hardening of categories.

Freedom is not caprice, but room to enlarge

Teaching may contribute to certain kinds of learning under certain circumstances.

Far better to think historically, to remember the lessonsof the past. Thus, far better to conceive of power as consisting in part ofthe knowledge of when not to use all the power you have. Far better to be onewho knows that if you reserve the power not to

Deep-seatedpreferences cannot be argued about.

The onesure way to conciliate a tiger is to allow oneself to be devoured.

Myfather said: you must never try to make all the money that's in a deal. Letthe other fellow make some money too, because if you have a reputation foralways making all the money, you won't have many deals.