cross that bridge when one comes to it

Etymology
A metaphor for an idea being like a train of thought and the problem being like the bridge.

Verb

 * 1)  To deal with a problem or situation only if and when it arises.

Translations

 * Chinese:
 * Cantonese: 船到橋頭自然直
 * Mandarin:
 * Finnish: ratkaistaan se ongelma vasta sitten, kun se tulee eteen
 * French: voir le moment venu
 * German:, alles zu seiner Zeit
 * Hebrew: כשנגיע לגשר נעבור אותו
 * Hungarian: (majd) akkor kelünk át a folyón/hídon, amikor odaérünk
 * Polish: nie martwić się na zapas
 * Swedish: den dagen, den sorgen