Like an unchecked cancer, hate corrodes the personality and eats away its vital unity. Hate destroys a man's sense of values and his objectivity. It causes him to describe the beautiful as ugly and the ugly as beautiful, and to confuse the true with the false and the false with the true. - Martin Luther King Jr.
The opposite of self-assertiveness is self-abnegation--abandoning or submerging your personal values, judgment, and interests. Some people tell themselves this is a virtue. It is a "virtue" that corrodes self-esteem. - Nathaniel Branden
This position I've held ... it pays may way and it corrodes my soul. - Morrissey