研究量子引力对于理解早期宇宙至关重要。
The study of quantum gravity is essential for understanding the early universe.
The best time to plant a tree was twenty years ago. The second best time is now.
Success is walking from failure to failure with no loss of enthusiasm.
Humility is a strength, not a weakness, in leadership.
The only thing we have to fear is fear itself.
If someone tells you he is going to make a “realistic decision”, you immediately understand that he has resolved to do something bad.
后世的君主却不是这样,认为天下的利害大权都出于自己。