To understand why consistency is so powerful a motive, it is important to recognize that in most circumstances consistency is valued and adaptive. Inconsistency is commonly thought to be an undesirable personality trait. The person whose beliefs, words, and deeds don’t match may be seen as indecisive, confused, two-faced, or even mentally ill. On the other side, a high degree of consistency is normally associated with personal and intellectual strength. It is at the heart of logic, rationality, stability, and honesty.
