2004年9月13日,81岁的杨振宁在清华大学开始为本科生讲授普通物理。他说
In television, ideas must be compressed into slogans and jokes.
建筑师必须是一个讲故事的人。
The only limit to our realization of tomorrow is our doubts of today.
过去是一个无处不在的阴影。
If you're not moving forward, you're falling behind.