The most important thing is to be able to think.

Freedom is not merely the opportunity to do as one pleases; neither is it merely the opportunity to choose between set alternatives. Freedom is, first of all, the chance to formulate the available choices, to argue over them - and then, the opportunity to choose.

真正满足的唯一方法就是做你认为伟大的工作。

The brave may not live forever, but the cautious do not live at all.