促使人们倾向于和平的激情是对死亡的恐惧，对舒适生活必需品的渴望，以及通过自己的努力获得这些的希望。
可持续性不是牺牲，而是机遇。
The best time to work on your career is when you're in your 20s.
The capacity of the human mind for formulating and solving complex problems is very small compared with the size of the problems whose solution is required for objectively rational behavior in the real world.