今天种植的每一棵树都是留给后代的遗产。

逻辑的法则就是真理的法则。

I think of my pile of old paperbacks, their pages gone wobbly, like they’d once belonged to the sea.

每当有人逝去，总有少数的人们会想到：许多事情被忽略了，许多事情还未来得及去做；多少事情给遗忘了，而更多事情已无法弥救——足可见，平素对待周围的人们需用心才是；没有什么是比追悔莫及更令人懊丧的了；请让我们趁早记住这个理吧，以免受那样的痛苦。

教育的艺术必须是引导孩子达到能够自我教育的程度。

The human race has one really effective weapon, and that is laughter.

事实是，在适当的情况下，我们都有能力做出极大的恶行。

I think it's very important to have a feedback loop, where you're constantly thinking about what you've done and how you could be doing it better.