旧情旧义旧温柔旧人旧事旧朋友
[jiù qíng jiù yì jiù wēn róu jiù rén jiù shì jiù péng yŏu]
Expresses nostalgia for things of the past - old love, old righteousness (duty/friendship/morality), old warmth and gentleness, old companions and friends. This can either signify regret about change over time or treasuring memories that will remain forever.