I told you so

少年不識愁滋味
I told you so, I told you so.
說來爽度上心頭

而今識過愁滋味
Ah, never mind. Ah, never mind.
光是收刀便成佛

修養是一輩子的功課，真的很難。
要時時刻刻自省，要時時刻刻寬容。