Look at the world with a pure heart and live with gratitude. Peace of mind can make you happy. The real peace of mind is not to achieve your own wishes, because the desire for the sea is boundless, but indifferent. The wall stands a thousand miles, and if you have no desire, you are just. Indifferent heart regardless of gains and losses, know how to tolerate, naturally win a quiet. Happiness is not getting everything you want, but enjoying everything you have. A quiet and happy life should be bought with a quiet heart.