【三年之艾】〖sn nián zh ài〗[emergency illness look for medicine, it's too late]

三折其肱自成医，

年登花甲久经历。

之法不及验积累，

艾发衰容备平时。

病久了才去寻找治这种病的干艾叶。比喻凡事要平时准备，事到临头再想办法就来不及。long illness just went seek the cure such illness dry moxa leaf. Metaphor everything want peacetime get ready, when the situation becomes critical think again method just it's too late.