"Political pundits have a saying that a great leader needs three things: brains, heart, and guts, or its modern variant, balls. Churchill, for example, had all three. Now start doing your own sums: FDR surely had all three; Nixon had brains and guts, but not much heart. Reagan had a good facsimile of a heart, but not much of a brain..."
January 1, 1970
https://en.wikiquote.org/wiki/Richard_Nixon