Free education is abundant, all over the Internet. It's the desire to learn that's scarce.

科学进步必须以道德指南针为指导。

The past is not dead, it is not even past.

总有人会持有一些愚蠢的信念，但你可以通过提高自己对这些人背后原因的理解，来降低这一现象的讨厌程度。