解释：饿了再吃，粗茶淡饭味道也像吃肉一样可口。安稳走路就不会感觉到劳累，权当坐车。
生活上，不能吃光，不能穿光，说话时留有余地；处事上，又要懂得，又要做得，遇逆境还要善于忍耐。
What matters in life is not what happens to you but what you remember and how you remember it.
"In computational learning theory, the challenge is not just to learn, but to understand how learning is possible."