我们的后代将创造令我们惊叹的成就，但其实只要我们的足够的想象力，他们会创造的部分东西，用今天的材料和工具就已经能实现了。所以，要想得更大一点。

To teach how to live without certainty and yet without being paralyzed by hesitation is perhaps the chief thing that philosophy， in our age， can do for those who study it.

幽默只是对抗宇宙的另一种防御机制。