I know Reagan isn’t too popular here, but Shultz was a really solid Secretary of State that helped make the world safer by bringing Reagan and Gorbachev together. He served Ike & Nixon also and advised Bush the Elder.
He served honorably in the US Marines in WWII making the rank of Captain.
Earned his PH.D. from MIT in industrial economics.
Under Reagan he did his best work though and was a high point in the questionable legacy of the Reagan Years.