I am always doing things I can't do, that's how I get to do them.

I am always doing that which I can not do, in order that I may learn how to do it.

I am always doing what I cannot do yet, in order to learn how to do it.

Você deve fazer as coisas que acha que não consegue fazer.

Go and do the things you can't. That is how you get to do them.

I do not understand what I do. For what I want to do I do not do, but what I hate I do.

Every time I've done something that doesn't feel right, it's ended up not being right.

You must do the thing you think you cannot do.

There is still something in everything I do that defeats me, makes me dissatisfied, challenges me to further effort. Sometimes I rise above my level, sometimes I fall below it, but always I fall short of the things I dream.

If I cannot do great things, I can do small things in a great way

I see what is right and approve, but I do what is wrong.

What people say you cannot do, you try and find that you can.

I try all things, I achieve what I can.

If I work hard enough, there will be things I can do tomorrow that I can't do today.