To understand the present, we must understand the past.
要理解现在，我们必须理解过去。
跨学科合作对解决全球能源问题至关重要。
Positive psychology is as concerned with strength as with weakness, as interested in building the best things in life as in repairing the worst.
The actor must be able to create a world and then live in it.
The most important quality for a researcher is persistence.
Nonviolence is the greatest force at the disposal of mankind.
The only one who's really judging you is yourself.
一个不以其历史为荣的国家永远无法创造历史。
The world is full of stories, but the stories are all one.
人生就像一面山坡。当你往上走的时候，你总是朝着山顶看，你感到快乐，但当你到达山顶时，你突然看到下山的路，以及路尽头的死亡。上山慢，下山快。