I always like to look on the optimistic side of life, but I am realistic enough to know life is a complex matter.

If pleasures are greatest in anticipation,just remember that this is also true of trouble.

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.

宇宙是一座黑暗森林，每个文明都是带枪的猎人，像幽灵般潜行于林间。

不要害怕冒险。最大的风险是根本不冒险。