Mathematics is the language with which God has written the universe.

The dead are never far from us. They're in our hearts and on our minds and they always will be.

酸的强度由其提供质子的能力来衡量，碱的强度由其接受质子的能力来衡量。

世界是一个充满痛苦的地方，唯一的逃避方式是通过爱。

Most men die at twenty or thirty; thereafter they are only reflections of themselves.

The coal industry must evolve with technology to meet global energy demands sustainably.

我只是想向自己证明我能做到。