在私利面前能够想到道义，遇到危难能够挺身而出，虽然长期生活在贫困之中，也没有忘记平生的诺言，这样就可以说是一个十全十美的人了。

The world is so unhappy because it is ignorant of the true self. Man's real nature is happiness. Happiness is inborn in the true self. Man's search for happiness is an unconscious search for his true self.

运营效率是在这个行业中保持竞争力的关键。

Real music comes from the heart, not for show.

To sing is to pray twice.

The interplay between chemistry and biology is what makes life so fascinating.

自然实验可以为经济问题提供有价值的见解。