Whatever I know how to do, I've already done. Therefore I must always do what I do not know how to do.
— Eduardo Chillida

What is right to be done cannot be done too soon.
Jane Austen done quote

I've done well for myself.
— Billy Mays

While they were saying among themselves it cannot be done, it was done.
— Helen Keller

I always do something that I've never done before.
— Lars von Trier