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.
有明确身份认同的人知道他们是谁以及他们代表什么。他们有强烈的自我意识，不容易被他人左右。
真正的竞争不是企业之间，而是与自己。
时间是一位伟大的老师，但不幸的是它杀死了所有的学生。
"We are all in the gutter, but some of us are looking at the stars."
The other thing about modern society and why it causes this anxiety, is that we have nothing at its center that is non-human. We are the first society to be living in a world where we don't worship anything other than ourselves. We think very highly of ourselves, and so we should; we've put people on the Moon, done all sorts of extraordinary things. And so we tend to worship ourselves.
量子力学和广义相对论之间的相互作用是现代物理学中最深刻的谜题之一，解决它可能需要我们彻底重新思考对宇宙的理解。
Girls have to go into the world and make up their own minds about things.
Science is a journey, not a destination.