《淮南子·人间训》
现在是不致力于使祸患不发生，而是等到祸患发生了再去挽救，这样你再有圣明的智慧，也是无计可施的。
今不务使患无生，患生而救之，虽有圣知，弗能为谋耳。
Now it is not that you do not work to prevent disasters from happening, but instead wait until disasters happen and then try to save the situation. In that way, even if you possessed great wisdom, it would be impossible to do anything.