A moth will eat the finest linen.
More Indonesian Proverbs:
Don't stay on the dew until the sun reaches its highest.Indonesian
Rippling water shows lack of depth.
Indonesian
Different fields, different grasshoppers; different seas, different fish.
Indonesian
If an eel is with fish, he shows his tail; if he is with snakes, he shows his head.
Indonesian
Beware, the enemy lies under your blanket.
Indonesian