Politics has no permanent friends or enemies, only interests.
政治没有永恒的朋友，只有永恒的利益。
"The greatest glory in living lies not in never falling, but in rising every time we fall."
If you say you want to automate cars and save people’s lives, the skills you need for that aren’t taught in any particular discipline. I know – I was interested in working on automating cars when I was a Ph.D. student in 1995.
Writing is groping in the dark, hoping to find a light.