時が過ぎて車を待つなら無駄な苦労だ。これと同じく、時が過ぎたのに苦労したら無駄な苦労だ。だから時を分かって行ないなさい。
If you wait for the bus after the time has passed, it is worthless effort. In this way, if you put in effort even though time has passed, it is worthless effort. Therefore, take action knowing the time.
photo:「waiting for the night bus」by dgafism from flickr