In his own words · Avoiding stupidity
“It is remarkable how much long-term advantage people like us have gotten by trying to be consistently not stupid, instead of trying to be very intelligent. People are trying to be smart — all I am trying to do is not to be idiotic, but it's harder than most people think.”
— Charlie Munger · Attributed to Munger; Berkshire/Wesco meetings
As recalled from Attributed to Munger; Berkshire/Wesco meetings — the sense is right but the wording is not verbatim.