He who would rule must hear and be deaf, see and be blind.
More German Proverbs:
Piety, prudence, wit, and civility, are the elements of true nobility.German
Ill got, ill spent.
German
Young drinkers, old beggars.
German
Drive a rat into a corner, and he'll jump at you.
German
As fast as laws are devised, their evasion is contrived.
German
The silent dog is the first to bite.
German