In his own words · Character
“Three rules for a career: Don't sell anything you wouldn't buy yourself; don't work for anyone you don't respect and admire; and work only with people you enjoy.”
— Charlie Munger · Attributed (David Clark, The Tao of Charlie Munger; popularized by CNBC, 2017)
As recalled from Attributed (David Clark, The Tao of Charlie Munger; popularized by CNBC, 2017) — the sense is right but the wording is not verbatim.
A genuine Munger sentiment; this tidy three-rule phrasing is a compiler's rendering, not a verbatim transcript line.