不同元素的原子通过它们的重量相互区分。

The only way to tell the truth is to speak without fear of the consequences.

The story is not in the words; it's in the struggle.

"Every saint has a past, and every sinner has a future."

Science is simply common sense at its best—that is, rigidly accurate in observation, and merciless to fallacy in logic.  

I'm not a pop star, I'm a performance artist.