The only way to learn mathematics is to do mathematics.
学习数学的唯一方法就是做数学。
Today was good. Today was fun. Tomorrow is another one.
The good life is not found in luxury, but in the freedom to choose our own path.
读一本好书，就是和许多高尚的人谈话。
The most important decision you make is to be in a good mood.
爱是唯一让生活可以忍受的东西，但它也是我们最大痛苦的来源。
Quality is remembered long after the price is forgotten.