It is never too late to reform, as long as you have the sense to desire it, and the strength to execute your purpose.

改进永远都不嫌晚，只要你有渴望它的意识，及执行目标的力量。

irreverent  adj.

[ɪˈrevərənt] 

showing lack of due respect or veneration

不敬的；不恭的

例句：

He gave her an irreverent reply. 

他给她一个不恭敬的答复。