C. I. Lewis

From Philosopedia

Lewis, Clarence Irving [Usually cited as C. I. Lewis] (12 April 1883 - 3 February 1964)

C. I. Lewis, a philosopher, combined symbolic logic with an essentially pragmatic epistemology. In opposition to the Principia Mathematica of Bertrand Russell and Alfred North Whitehead, Lewis developed his own system.

In Mind and the World-Order (1929), he developed a position according to which the choice between logical (and thus philosophical) systems must be based on pragmatic grounds.

Asked in 1954 about various categories of humanism, Lewis responded:

Classification sometimes involves over-simplification. I could not classify myself with those mentioned under any of your seven heads without disregarding some points, important to me, on which I would differ from each.

(CE; WAS, 2 August 1954}