每一枪都很重要，生命中的每一刻也是如此。

The 40% solution: The capacity to increase happiness is within our personal control.

The writer must be a stranger in his own country.

The only limit to our realization of tomorrow is our doubts of today.

译文：拥有的时候，常常要想到没有的日子，不要等到没有的日子，才想起拥有的日子。赏析：不管做任何事，人都要有居安思危，防患于未然的意识。