人无远虑，必有近忧

rén wú yuǎn lǜ , bì yǒu jìn yōurenwuyuanlu,biyoujinyou

1. He who gives no thought to far-flung problems soon finds suffering nearby (idiom, from Analects).
2. Smug concentration on the here and now will lead to future sorrow.

Study it in Yanamino