moralism

from The American Heritage® Dictionary of the English Language, 5th Edition.

• noun A conventional moral maxim or attitude.
• noun The act or practice of moralizing.
• noun Often undue concern for morality.

from The Century Dictionary.

• noun A moral maxim or saying; moral counsel or advice; moral sermonizing; inculcation of morality.
• noun The practice of morality as distinct from religion; the absorption of religion in mere morality.
• noun A tendency to moralize; a habit of moralizing.

from the GNU version of the Collaborative International Dictionary of English.

• noun A maxim or saying embodying a moral truth.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun The act or practice of moralizing.
• noun A maxim or saying embodying a moral truth.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun a moral maxim
• noun judgments about another person's morality