In youth, it was a way I had
     To do my best to please,
And change, with every passing lad
     To suit his theories.

But now I know the things I know,
     And do the things I do;
And if you do not like me so,
     To hell, my love, with you!

From Enough Rope (Boni & Liveright, 1926) by Dorothy Parker. This poem is in the public domain.