我死了之后，四面都是敵人，你們千萬(wàn)不要被敵人軟化！
——在遺囑上簽名后，對(duì)在病榻的同志們說，1925年3月11日
If time travel is possible, where are the tourists from the future?
The environment is a long-term issue that requires long-term commitment.
Avoid extreme ideologies because they rob you of your sanity.
I'm not afraid to take a stand.
Life is too short to be living someone else's dream.
"Great lives are like great novels - they have plot twists, character development, and moments of sheer poetry."
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'