General Rules on Lettering, No. 2

Do not allow the eye to dwell on that which is inartistic; for, just as truly as "evil associations corrupt good manners," just so surely does association of the eye with that which is out of proportion, distorted, or irregular, leave an impression which is lasting in its effect on, and by no means easy to dispel from, the mind.

An exceptional excerpt from Elements of Lettering & Sign Painting prepared for the students of The International Correspondence Schools. Something I definitely need to keep in mind.