As soon as stones can swim, leaves will sink.
More Japanese Proverbs:
It is no use cutting a stick when the fight is over.Japanese
Cupidity has no peak.
Japanese
Love without friendship is like a shadow without the sun.
Japanese
When the heat has passed, you forget about the shade of trees.
Japanese
The nail that sticks its head up is the one that gets hit.
Japanese
If you hate a man, let him live.
Japanese