The attosecond timescale is to electron motion what the high-speed camera was to studying animal locomotion.
A mathematician is a person who can find analogies between theorems; a better mathematician is one who can see analogies between theories and the best mathematician can notice analogies between analogies.
我们独处时的自己与在他人面前时从不一样。即使在黑暗中，我们也是不同的。
You can’t please everyone, so don’t try.
生活就是关于成长和改变。
Without music， life would be a mistake.
How can our great society tolerate the continued brutalization of its citizens by crazed misfits? Criminals must be told that their CIVIL LIBERTIES END WHEN AN ATTACK ON OUR SAFETY BEGINS!
