Why should I practice running slow? I already know how to run slow. I want to learn to run fast.

Why should I practice running slow? I already know how to run slow. I want to learn to run fast.

我为什么要练习慢跑?我已经知道如何慢跑了。我想学跑得快。

-- Emil Zatopek 埃米尔·扎托佩克