I don't know what's tighter, my jeans or my security.
How many roads must a man walk down before you call him a man?
I believe in the power of positive energy.
The beauty of a mathematical proof lies in its simplicity and inevitability.
学习不仅仅是存储信息的问题;它是一个通过改变支配行为的规则来适应环境的过程。