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
The deepest principle in human nature is the craving to be appreciated.
软件工程的目标是创建可靠、高效且易于理解和修改的系统。
Innovation is not just about technology; it's about changing the way we think and operate.