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.
适合从事任何特定行业的人,如果没有完全不同教育背景的人的友好帮助和合作,就无法理解该行业的科学。
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。