心理过程进化是为了解决实际问题。
Mental processes evolved to solve practical problems.
The essence of mathematics lies in its freedom.
The most important skill for a programmer is the ability to read code.
成功不仅在于你取得了什么成就，还在于你在这个过程中成为了什么样的人。
The only limit to our realization of tomorrow is our doubts of today.
The process of discovery in mathematics is often more important than the result itself.