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.

我们必须对外界学习保持永不满足的渴望。

没有食物，人类最多只能活几个星期；没有它，社会正义的所有其他组成部分都毫无意义。

预测化学未来的最好方法就是去创造它。

医学成像的未来在于先进技术和个性化医疗的整合。