Theodore Roosevelt

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...

If you could kick the person in the pants responsible for most of your trouble, you wouldn't sit for a month.

It is only through labor and painful effort, by grim energy and resolute courage, that we move on to better things.

Keep your eyes on the stars, and your feet on the ground.