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勇气并不总是咆哮。有时勇气是一天结束时那个轻声说"明天我再试一次"的声音。
The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
Psychology must be free from all metaphysical entanglements.
The more you see yourself as a product, the less you see yourself as a person.
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。