I think leadership is not something you learn; it's something you discover. -- Myles Munroe
Some suggestions for you :
Education is what remains after one has forgotten what one has learned in school.
There is no desire more natural than the desire for knowledge.
When you advise any person you should be guided by the fear of God.
Take all the fools out of this world and there wouldn't be any fun living in it, or profit.
It is not in words that I should wish my life to be distinguished, but rather in things done.
A true friend is one who overlooks your failures and tolerates your success.