Courtesy costs nothing. Lower the toilet seat after use. Let the people in the elevator exit before you enter. Return shopping carts to their designated areas. When you borrow something， return it better shape (filled up， cleaned) than when you got it.
无铬是不够的；我们需要无愧于心。
建筑师必须是一个先知...真正意义上的先知...如果他不能预见至少十年以后的事情，就不要称他为建筑师。
我努力改了四十年，现在才刚刚控制住。我过去几乎每天都生气，乔，但我学会了不把它表露出来；我还希望学会不把它感觉出来，虽然可能有的花上四十年的功夫。
朗道学派不仅仅是一个物理学派，它是一个生活的学派。
Courage is the most important of all the virtues, because without courage you can't practice any other virtue consistently.
I'm alive and I have a chance to do something with my life. That's the only motivation I need.