Chairman Mao's swimming experience

Haha, good guidance on swimming theory.
From Tom: http://cul.tom.com/1066/1075/2005523-16534.html
Quote:

Since swimming at Tsinghua University, *** has a great deal of interest in swimming. He also summed up his unique experience in swimming: "The biggest advantage of swimming is that you don't want to worry about it, so that your brain can rest well. Taking sleeping pills, walking, watching movies, and dancing won't work, but swimming can do it, because water will sink when you think about it. "