Reason means truth and those who are not governed by it take the chance that someday the sunken fact will rip the bottom out of their boat. – Oliver Wendell Holmes,Jr.

I cannot tell by what logic we call a toad, a bear, or an elephant ugly; they being created in those outward shapes and figures which best express the actions of their inward forms. – Sir Thomas Browne

Pure logic is the ruin of the spirit. – Antoine de Saint-Exupéry, Flight to Arras, 1942, translated from French by

From a drop of water a logician could infer the possibility of an Atlantic or a Niagara without having seen or heard of one or the other. – Sir Arthur Conan Doyle