I Ching
Also, there is the idea of constantly changing world, as the explanation of 11th hexagram (泰 tài) tells, "Everything flat will be inclined, and everything gone will be come back." Similarly, the idea of endlessness can also be found. The literal meaning of 63rd hexagram (既濟 jì jì) is "already (既) finished (濟)", but the last hexagram, which is the 64th (未濟 wèi jì), means "not (未) finished (濟)" literally. This means the process of whole world and life is endless and never stops.