No man or woman is worth your tears， and the one who is， won‘t make you cry。
Every body continues in its state of rest, or of uniform motion in a right line, unless it is compelled to change that state by forces impressed upon it.
人民有三种忧患：饥饿的得不到食物、寒冷的得不到衣物、劳苦的得不到休息。
计算的未来将由人类的聪明才智定义，而不仅仅是硅。
不修养品德，不讲习学问，听到正义不能追随，有缺点不能改正，这些都是我所忧虑的。