The idea that we will make a society where literally everybody is graded, the good at the top, bad at the bottom, exactly done as it should be, is impossible. There are simply too many random factors: accidents, accidents of birth, accidents of things dropping on people's heads, illnesses, etc. We will never get to grade them, never get to grade people as they should.

哲学家们只是用不同的方式解释世界，而问题在于改变世界。

每一种思想都服务于某种生物目的。

世人很少知道，有多少经过科学研究者脑海的思想和理论，被他自己的严厉批评和反面检验默默扼杀。

对于任何领导者来说，最重要的事情是明确世界的发展方向。