地久天長 [ㄉㄧˋ ㄐㄧㄡˇ ㄊㄧㄢ ㄔㄤˊ; di4 jiu3 tian1 chang2] enduring while the world lasts (idiom, from Laozi); eternal for ever and ever (of friendship, hate etc) also written 天長地久 ◄ ►