All human knowledge is from experience.
Sometimes the only way out is through.
宇宙是可以理解的,因为它受我们能够理解的法则支配。
试图在不激发学生学习欲望的情况下进行教学的老师,就像在冷铁上敲打。
The writer must be a defender of the individual against the tyranny of the collective.