现实是，你知道，作为一个黑人，巴拉克去趟加油站都可能被开枪打死。

I have called this principle, by which each slight variation, if useful, is preserved, by the term Natural Selection.  

我成为首相的几率，和在火星上找到猫王，或者我转世成为一颗橄榄的几率差不多。

"The best ideas come from the intersection of technology and humanity."

【释义】刀能杀人，人们都知道；笔能杀人，人们却未必都知道。