Anger without power is folly.
More German Proverbs:
He is rich enough who is contented.German
Old age is no protection against foolishness.
German
Anger hears no counsel.
German
The poor must dance as the rich pipe.
German
He who undertakes to be his own teacher has a fool for a pupil.
German
With someone holding nothing but trumps it is impossible to play cards.
German