The past is always changing, because we are always changing our relationship to it.
I stand up for what I believe in, and I believe in a lot of things.
We can’t ignore the economic role of coal, but we also can’t ignore its environmental impact.
宇宙的扭曲面——黑洞、虫洞、奇点和时间扭曲——才是真正的精彩所在。
"We die. That may be the meaning of life. But we do language. That may be the measure of our lives."
我们会死。那可能是生命的意义。但我们创造语言。那可能是衡量我们生命的标准。
"Education never ends, Watson. It is a series of lessons, with the greatest for the last."