He is not fit to command others that cannot command himself.
More Romanian Proverbs:
Who more than he is worth doth spend, he makes a rope his life to end.Romanian
The fated will happen.
Romanian
It is not good praising a ford till a man be over.
Romanian
Look to thyself when thy neighbour's house is on fire.
Romanian
The good mother says not, Will you? but gives.
Romanian
A good deed is never lost.
Romanian