Reading a W bio on rotten.com:

In 1973 he enrolled in Harvard Business School and spent the next two years earning his MBA. He spoke fondly of the institution in his 1999 autobiography, declaring: "Harvard gave me the tools and the vocabulary of the business world."

I.e., he learned how to be a professonal bullshitter. Which, I’d venture to say, only complemented his natural bullshitting abilities. But oh, it gets better:

In 1974, George spent Superbowl Sunday at a party hosted by Hunter S. Thompson. When asked decades later if he remembered whether Bush had used any drugs at his party, Thompson replied:

"I can't be expected to remember what every drug-addled yuppie hanger-oner who wanted to get close to me during a football game twenty-five years ago digested. There were so many dope fiends milling about, I don't remember what some Yalie named Bush, whose father was a factotum in the Nixon Administration, was doing. But he strikes me as the sort of person I would have thrown out of the room. A rich, beer-drunk yahoo with a big allowance who passes out in your bathtub...

And he’s running our country! Yes!