Cast out envy; you can have all that you want, and you need not envy any man what he has. Above all things, see to it that you do not hold malice or enmity toward any one; to do so cuts you off from the mind whose treasures you seek to make your own. Lay aside all narrow personal ambition and determine to seek the highest good.

The Science of Getting Rich: The Original Classic (ed. John Wiley and Sons, 2010) - ISBN: 9780857080875