True greatness means that, even if you forget what you've done for others, you never forget what others have done for you. It means always doing your utmost to repay debts of gratitude. Such people radiate integrity, depth of character, bigheartedness and charm.
Enlightenment, or true happiness, is not a transcendental state. It is a condition of broad wisdom, boundless energy, and good fortune wherein we each shape our own destiny, find fulfillment in daily activities, and come to understand our ultimate purpose in life.