In his own words · Temperament
“A lot of people with high IQs are terrible investors because they've got terrible temperaments. And that is why we say that having a certain kind of temperament is more important than brains. You need to keep raw irrational emotion under control.”
— Charlie Munger · Kiplinger's interview, 2005 · 2005
Verified. Sourced to Kiplinger's interview, 2005 · 2005.