Do it if it must be done.

You can do what can be done. It takes a REAL genius to do what can't be UNDONE !

Just do it ! Just don't waste your time learning how to do it !

You can do almost anything if you do a little bit at a time. Day by day. Until it is done. The joy is in the doing. Not the completion.

Still, he figured, sometimes you've got to do what you've got to do, and then sometimes you've just got to run like hell after it's done.

But “almost done” is not done!