Poems describing absentmindedness

You can read Zhuge Liang's commandments:

A gentleman's journey is quiet to cultivate one's morality, and frugal to cultivate one's morality. Not cold, not awake, not quiet, not far away. You must be quiet before you can study. If you don't learn, you can't be versatile, and if you don't want to learn, you can't succeed. Slow can't have vitality, and risk can't have sex. Time goes by, meaning goes by, and then becomes withered, not meeting the world, and staying in a poor house sadly. What will happen?