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
做出伟大工作的唯一方法就是热爱你所做的事。
New opinions are always suspected, and usually opposed, without any other reason but because they are not already common.
The true artist does not create for fame, but for the sheer joy of creation.