Charles F. Kettering
It's amazing what ordinary people can do if they set out without preconceived notions.
You can't have a better tomorrow if you are thinking about yesterday all the time.
Our imagination is the only limit to what we can hope to have in the future.
Keep on going and the chances are you will stumble on something, perhaps when you are least expecting it. I have never heard of anyone stumbling on something sitting down.