书看了一定会有用，不一定非要有什么具体的改变。

人往前走的时候未必会一直数着一二三，但无论多少步，都是一二三累积起来的。

Reading books must be useful,whether will happen any practical changes or not.

When you go forth,you may not remember to consciously say "One two three",but no matter how many steps you walk,it is accumulated by every little step.

做错事总要付出代价的，慢慢努力，慢慢优秀。