The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
The greatest prosperity can exist only as the result of the greatest possible productivity of the men and machines in the establishment.
"The temporary is sometimes more powerful than the permanent."
聪明的投资者是现实主义者,他们向乐观主义者出售,从悲观主义者那里购买。
The most important thing in mathematics is to understand the concepts, not just to memorize formulas.