幸福不是现成的东西。它来自你自己的行动。
"I can resist everything except temptation."
Behavior, as such, is not to be regarded as a mere chain of muscular contractions, but rather as a purposive and cognitive affair.
Every great mathematical theory begins as a heresy and ends as a dogma.
I think that the most important thing a woman can have - next to talent, of course - is her hairdresser.