生命中最美好的东西都是免费的。显然,我们最宝贵的资源是时间。
"We are all in the gutter, but some of us are looking at the stars."
广义相对论在某种意义上就是引力场的理论。
武力不能维持和平。只有互相理解才可以。
我希望我的艺术成为一声尖叫、一声哭泣、一声呐喊。
The world must be set in order. The time has come when ethics must be dealt with by science, and never again by mere opinion.
每一个挑战都是学习和改进的机会。