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.

我不害怕表明立场，来吧，握住我的手。

你唯一必须知道的就是图书馆的位置。

我们必须面对现实，即使现实是残酷的。

最好的学习方法就是实践。

我们对野生动物的爱与对人类之爱有着天壤之别。