And I like my generals a bit more sober than Grant.
Seriously, Grant had a weakness for the bottle but, as Bruce Catton said one time, somehow not when the chips were down. And while he was a lousy president because he trusted his friends too much, he was an honest and courageous man. He refused morphine while dying in agony of throat cancer so that he could finish his autobiography to provide for his family after his death.
(full disclosure: he married my 3rd cousin Julia Dent. She was struck out of the family bible for marrying a Yankee, but that's another story . . . :-D )