我总是很高兴地想到，我的教育大部分是非正式的，并且根植于土壤之中。
You cannot explore the depths of the soul, even if you travel every road.
Opposition brings concord. Out of discord comes the fairest harmony.
一起激发的细胞连在一起。
The world needs all forms of energy to meet growing demand, and natural gas is a cleaner alternative that can help bridge the gap.
如果希特勒入侵了地狱,我也会在议会里夸奖魔鬼几句。
In mathematics, you don't understand things. You just get used to them.
Innovation requires both creativity and rigorous testing.