我已将这一原则——每一微小变异若有益便被保存——称为自然选择。

争论不应该是煤炭与可再生能源的对立，而应是如何让两者都变得更好。

我们必须像投资技术一样投资于人；两者对进步都至关重要。

The only limits in life are the ones you set for yourself.

"Dreams come true; without that possibility, nature would not incite us to have them."

The world is what it is; men who are nothing, who allow themselves to become nothing, have no place in it.

唯一无法得到帮助的人是那些责备他人的人。