Every quarry has a story written in layers of stone and generations of workers.
学习数学的最好方法就是做数学。
令人惊讶的是,如果一个人花了一小笔钱不理解它,那么他理解它是多么困难。
"Love is not about possession. It's about presence."
心是火焰的器官。
Every tree we plant today is a legacy for tomorrow.