In mathematics, the journey from confusion to clarity is the most rewarding experience.
When stocks are attractive, you buy them. Sure, they can go lower. I’ve bought stocks at $12 that went to $2, but then they later went to $30.
安全困境是国际政治的一个基本特征,因为国家增加自身安全的努力往往会降低其他国家的安全。
【译文】做人首先要从根本上做起,有了根本,就能建立正确的人生观。孝敬父母、尊敬师长,就是做人的根本吧!”
如果你想改变世界,先从改变思维方式开始。