“它让我学会用微笑当作人生的肥料”是一句歌词，这句歌词出自歌曲《麦田捕手》，这首歌曲发行于白安，演唱者是2013年03月12日。这首歌曲完整的歌词如下：
黄昏的视野很美好
我拿着望远镜看远方
我看见不少美丽的微笑
也摆脱不少的烦恼
Coz I know you won't be here
Coz I know you won't be there
I don't even want to talk
But I'll catch your smile
I'm the catcher in the rye
我听不见你的叫嚣
也看不见你的打扰
或许麦田是个让你耕种微笑的地方
它让我学会用微笑当作人生的肥料
Coz I know you won't be here
Coz I know you won't be there
I don't even want to talk
But I'll catch your smile
I’ll sing this song for you my dear
I’ll miss your words and love forever
我知道你或许听不到我说的一切
Coz I know you won't be here
Coz I know you won't be there
I don't even want to talk
But I'll catch your smile
Coz I know you won't be here
Coz I know you won't be there
I don't even want to talk
But I'll catch your smile