The greatest happiness is to know the source of unhappiness.
I think that the most powerful films are the ones that stay with you long after you've seen them.
Innovation in forestry means listening to centuries-old wisdom while embracing cutting-edge science.
在学习结束时,我们知道物理学的所有过去,但对现在和未来一无所知。
What can be said at all can be said clearly; and whereof one cannot speak thereof one must be silent.