唯一值得称道的自由是追求我们自己的利益的自由方式,只要我们不试图剥夺别人的利益或妨碍他们获得自己的利益。
It is remarkable how much long-term advantage people like us have gotten by trying to be consistently not stupid, instead of trying to be very intelligent.
The art of invention consists in finding out the causes of known effects.