定义就是限制。

养儿子不教育和养驴没有什么区别，养女儿不教育也和养猪没什么区别；妻子如果贤惠，丈夫就少遭祸患，儿子如果孝顺，父亲就心情舒畅。

当一个问题被清晰地陈述时，它就已经解决了一半。

Man's main task in life is to give birth to himself, to become what he potentially is. The most important product of his effort is his own personality.

解释：人的命运是天注定的，人不能去改变。