Emperor Guangwu Liu Xiu said, "Where there is a will, there is a way!"
Liu Bei, the founder of Shu Han Dynasty, said, "Don't act on the small evil, and don't act on the small good."
Li Shimin, Emperor Taizong of Tang Dynasty, said, "With copper as a mirror, you can straighten your clothes; Taking the ancient as a mirror, we can know the rise and fall, and taking people as a mirror, we can know the gains and losses. "