金银像其他商品一样具有内在价值，这不是任意的，而是取决于它们的稀缺性、获取它们所耗费的劳动量以及生产它们的矿山所投入的资本价值。

Always plan ahead. It wasn’t raining when Noah built the ark.

我们所有人的挑战是创造多于消费。

A new scientific truth does not triumph by convincing its opponents and making them see the light, but rather because its opponents eventually die, and a new generation grows up that is familiar with it.

关于我们所有人的基本事实是，我们活了一段时间，但很快就会死去。这个事实是我们所有愤怒和痛苦的根本原因。