Opportunities are changing ceaselessly. Those who get there too early have gone too far, while those who get there too late cannot catch up. As the sun and moon go through their courses, time does not go along with people.
Therefore, sages do not value huge jewels as much as they value a little time. Time is hard to find and easy to lose.
— HUAINANZI, CHINA, SECOND CEN TURY B.C.