What proposition is there respecting human nature which is absolutely and universally true? We know of only one,--and that is not only true, but identical,--that men always act from self-interest.
Thomas B. MacaulayGeneralization is necessary to the advancement of knowledge; but particularly is indispensable to the creations of the imagination. In proportion as men know more and think more they look less at individuals and more at classes. They therefore make better theories and worse poems.
Thomas B. Macaulay