【原文】冉求曰：“非不悦子之道，力不足也。”子曰：“力不足者，中道而废，今汝划。”【译文】冉求说：“我不是不喜欢您的学说，而是我的能力不足。”孔子说：“如果是能力不足的话，是走到中途才废弃而停止，但现在你还没开始，就给自己划了一条截止的界限而停止前进了。”

Safety isn't a priority—priorities can change. Safety is a core value that never changes.

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.

数学研究的过程和结果本身一样重要。

我不擅长生活，但我擅长音乐。