思想需要书来磨砺,正如宝剑需要磨刀石。
A mind needs books like as word needs a whetstone.
The beauty of a mathematical proof is in its elegance and the way it reveals the underlying truth in a clear and concise manner.
The advancement of mathematics is through the continuous questioning of established truths.
The most important single aspect of software development is to be clear about what you are trying to build.
软件开发中最重要的一个方面是明确你试图构建什么。
I don't know what's tighter, my jeans or my security.