Og Mandino

"Be yourself. Try to be anything else but your genuine self, even if you deceive the entire world, and you will be ten thousand times worse than nothing... You have been blessed with special skills that are yours alone. Use them, whatever they may be, and forget about wearing another's hat. A talented chariot driver can win gold and renown with his skills. Let him pick figs and he would starve. No one can take your place! Realize this and be yourself. You have no obligation to succeed. You have only the obligation to be true to yourself. Do the very best you can, in the things you do best, and you will know, in thy soul, that you are the greatest success in the world."--Og Mandino, The Greatest Success in the World (New York: Bantam Books, 1981), p. 94.