I was beginning to learn what all good pros and students of tennis must learn: that images are better than words, showing better than telling, too much instruction worse than none, and that trying often produces negative results.

-- The Inner Game of Tennis

我开始学习所有优秀的网球专业人士和学生都必须学习的东西：图像比文字更好，展示比讲述更佳，过多的指导不如没有，而且往往会产生负面结果。