好汉若提当年只因今年日衰
[hăo hàn ruò tí dāng nián zhĭ yīn jīn nián rì shuāi]
'If a Good Man Speaks of the Past, It Is Because This Year Is Worse'. The individual is implying that they recall better days because current circumstances are difficult or discouraging. There's nostalgia for former strength and better conditions.