The thief has both heart and courage, but the thief is sleeping. ——Formerly known as Zhang Xin, Chinese-American female writer Liuliu

You don’t know when you are hungry or full when you eat, and you don’t know when you sleep. ——Shan Tianfang, master of storytelling performing arts, famous sayings about sleeping

If you have nothing to do, take your time, and when you sleep, the sun will be shining brightly. ——Cheng Hao, an educator in the Song Dynasty, "Autumn Comes Together"

When you can't tell yourself what you learned today, don't go to bed. ——Lichtenberg

Making love and sleeping with a woman are two different emotions. The former is lust, and the latter is mutual affection. ——Czech novelist Milan Kundera

To survive, you must have something to rely on. … To live in the country is only inner labor, while the spirit sleeps.

——Russian novelist and dramatist Chekhov