The only real mistake is the one from which we learn nothing.
All that money can do is buy us some one else's work in exchange for our own.
Money is worth what it will help you to produce or buy and no more.
Gold is the most useless thing in the world. I am not interested in money but in the things of which money is merely a symbol.
Before everything else, getting ready is the secret of success.
Thinking is hard work, which is why so few people do it.