The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
数学的本质不是使简单的事情复杂化,而是使复杂的事情简单化。
一本儿童书是他们参观的第一个艺术画廊。
The only way to do great work is to love what you do.
关心是某事物确实重要的状态。