Predicting rain doesn't count. Building arks does.

You can be sure that over the next 10 years, you'll see something that you did not think was possible.

The only question is whether you're going to do it today or tomorrow. If you keep saying you're going to do it tomorrow, you'll never do it. You have to get on it today.

An idea is something that won't work unless you do.

In order to carry out a positive action we must develop a positive vision.

The doer alone learneth.