Steve, I`m glad you started this thread. A simple quote can do wonders.
Here`s another George Bernard Shaw for you:
"Some men see things as they are and say `why?` Other men dream of things that never were and say `why not?
And a couple of others:
"A pessimist is one who sees difficulties in his opportunities. An optimist is one who sees opportunities despite the difficulties"   ; Harry S Truman
This is one of my favorites of all time:
Far better is it to dare mighty things, to win glorious triumphs, even though checkered by failure...than to rank with those poor spirits who neither enjoy much nor suffer much, because they live in a gray twilight that knows not victory nor defeat.
Along that line:
"No one will need more than 637 kb of memory for a personal computer."
-Bill Gates, Founder of Microsoft
He was off only by approximately infinity I think. LOL!!
I love motivational quotes! My brain doesn`t always work well enough to tell myself what I need to hear to keep moving...and others can say it just right! My all time favorite is this one!
"Bite off more than you can chew and then chew like hell."-- Peter Brock
"A successful person is one who can lay a firm foundation with the bricks that others throw at him or her." -David Brinkley
“Here`s to the crazy ones, the misfits, the rebels, the trouble makers. The round pegs in the square holes, the ones who see things differently. They`re not fond of rules, and they have no respect for the status quo. You can quote them, disagree with them, glorify or vilify them. About the only thing you can`t do is ignore them, because they change things, they push the human race forward, and while some may see them as the crazy ones, we see genius. Because the people who are crazy enough to think they can change the world are the ones who do.” -- Apple Computers, Think Different
I, too, love quotes. and there are several that come to mind, but some of my favorites are:
Richard Nixon: "You can`t enjoy the view, until you climb the mountain."
John F. Kennedy: "The credit belongs to the man in the arena, whose face is marred by dust, sweat, and blood. Who knows the great enthusiasms, the great devotion. Who spends himself in a worthy cause who at best in the end knows the triump of high achievement and if he fails, fails while daring greatly so that his place will never be with those cold and timid souls that no neither victory or defeat."
Unknown: "Character is what you are in the dark."
Just a few of my favorites.