Reason: The arithmetic of the emotions. – Elbert Hubbard, The Roycroft Dictionary

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

Truly, that reason upon which we plume ourselves, though it may answer for little things, yet for great decisions is hardly surer than a toss-up. – Charles Sanders Peirce