To quote the great philosophers, Lennon and McCarthey:

There's nothing you can do that can't be done.
Nothing you can sing that can't be sung.
Nothing you can say but you can learn how to play the game
It's easy.
There's nothing you can make that can't be made.
No one you can save that can't be saved.
Nothing you can do but you can learn how to be you
in time - It's easy. All you need is ...

and a lovely sculpture in Philadelphia by Robert Indiana