You are at liberty to do as you please.

你可以随意行事。

《新英汉大辞典》

Do as you please.

随你的便。

《新英汉大辞典》

Well, if you don't want to study, do as you please.

你要是不想学习，那就请便吧。

《新英汉大辞典》

"I would like to say to President Obama - please do everything you can to get our family out, " CNN quoted him as saying.

BBC: Chen Guangcheng left US embassy 'after family threats'

Please try to remember that what they believe, as well as what they do and cause you to endure, does not testify to your inferiority but to their inhumanity and fear.

NPR: An Author's Companion in Rage, Exile and Return

Oh and please tell me how your austerity is really necessary while you know as well as I do the republican plan is more contingent upon growth than any other factor.

FORBES: The Election of the Ant and the Grasshopper