鱼忘七秒人记一世
[yú wàng qī miăo rén jì yī shì]
Translated as 'A fish forgets in seven seconds; a man remembers all his life.' Fishes are known to have very short-term memory, which forms an interesting contrast with humans who remember almost everything. There might be melancholy behind the scenes, hinting at impermanent love affairs or people not valuing things enough as time flies.