Romain rolland-The so-called happiness lies in recognizing a person's limits and being content with the status quo. Lincoln–For most people, they are as happy as they decide to be. Laozi-contentment is always happy, and life is not humiliating; Be content and never be ashamed. Bai Langning-I am happy because of love, because I have love. Dumas-Life is a rosary made up of countless troubles, but you should count it with a smile. Master nebula-you can only see the essence of the world, but human feelings begin to grow. Shelley-it doesn't matter what the world is, what matters is how you look at it. Jack Welch-There is no eternal night on earth, and there is no eternal winter in the world.