"Never give in. Never give in. Never, never, never, never--in nothing, great or small, large or petty--never give in, except to convictions of honor and good sense. Never yield to force. Never yield to the apparently overwhelming might of the enemy."
The philosohpy he used in leading the greatest empire the world had ever seen to a humiliating dissolution.
Personally I think "never give up" should be the one tip given to founders if there can only be one.
I went to a residential school whose motto was "Never Give In" I was there for 8 yrs. Luckily, this trait is instilled very well in me. Our school song might be worth a read for some.