It is never worth a first class man’s time to express a majority opinion. By definition, there are plenty of others to do that.

G. H. Hardy (1877-1947) British mathematician [Godfrey Harold Hardy]

(Attributed)

Quoted by C.P. Snow in the 1992 forward to Hardy's A Mathematician's Apology (1941). (Full text) Also sometimes quoted as: "It is not worth an intelligent man's time to be in the majority. By definition, there are already enough people to do that."