People with a clear sense of identity know who they are and what they stand for. They have a strong sense of self and are not easily swayed by others.

一个国家的法律如果不能保证公平公正、不能惩恶扬善、不能保障人民的利益，就不能当做法律。

真正的普惠是让每个人都有平等的机会。

"The world is, in the end, what we say it is."

The power of mathematics comes from its ability to abstract and generalize, turning specific problems into universal truths.

Sustainability isn't a choice anymore—it's a responsibility we owe to future generations.

广义相对论可能是所有现有物理理论中最美的。