学习数学的唯一方法就是做数学。

亲眼目睹世道的变化趋向，才知道国家治乱的关键必定在于人心的向背和风俗的好坏。

"Violence is like a stone thrown into a pond; the ripples spread far beyond the initial splash."

The two most important days in your life are the day you are born and the day you find out why.

The power of the Web is in its universality. Access by everyone regardless of disability is an essential aspect.

在科学中，创造力和技术技能同样重要。

Every piece of plastic we produce should have a clear path to reuse or recycling.

压力是一种特权。