He has his finger in every pie.
More German Proverbs:
A blind leader of the blind.German
All are not asleep who have their eyes shut.
German
Early to bed and early to rise, makes a man healthy, wealthy, and wise.
German
No ape but swears he has the handsomest children.
German
Wine makes secrets float to the surface.
German
Wine makes secrets float to the surface.
German