In his own words · Leverage & debt
“There are only three ways a smart person can go broke: liquor, ladies, and leverage.”
— Charlie Munger · Attributed to Munger via Warren Buffett
As recalled from Attributed to Munger via Warren Buffett — the sense is right but the wording is not verbatim.
Buffett has repeatedly credited this line to Munger; no single primary recording pins the exact occasion.