The key to successful trading is to know when to buy and when to sell.
What I feared most for myself at your age was not poverty, but failure.
人类今天拥有自我毁灭的手段——要么是在完全疯狂的发作中,即在一场大战中,通过短暂的破坏发作,要么是通过对原子技术的粗心处理,通过缓慢的中毒和遗传结构的恶化过程。
你停止学习的那一刻,就是你开始落后的那一刻。