What is sauce for the goose is sauce for the gander. Like father like son. A chip off the old block. The apple never falls far from the tree. Blood is thicker than water.
Comparisons are odious.
Company in distress makes trouble less. What a man has by nature lasts to his grave. You can't change a leopard's spots. Good breeding is the blossom of good sense. Once a thief always a thief.