Most Intelligence is inherited. Jews and Liberals do their utmost to lie about this. When a baby is born, 70% of it's intelligence comes from it's mother and father. This is the key to understanding race and understanding why races are different. Races are different in many other ways too. Here is a lecture from Jared Taylor.
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White Shop: Tigers in the Mud: The Combat Career of German Panzer Commander Otto Carius
He was physically small and often underestimated, but once he took command of his first Tiger he found his calling and worked his way up the chain of command from a lowly loader to company leader. His exploits on the Ost Front became semi-legendary, but unlike some of his more famous fellow Tiger aces (Wittman, von Strachwitz), he survived to tell the tale first-hand.