李祥霖老师说的：
喜欢就能学
If you like it, you can learn it.
入迷就能学好
If you are into it, you can learn it well.
发疯就能学精
If you are crazy, you will do awesome.
发疯就是一弹琴就不怕饿，停不下来，但是，粗心和没耐性也不行。
What is going crazy? When you pluck the gutin, you don't fear hunger either, you won't stop either，but being careless and impatient won't work either.
