What people think, believe, and feel affects how they behave. The natural and extrinsic effects of their actions, in turn, partly determine their thought patterns and affective reactions.
Albert BanduraStringent standards of self-evaluation [can] make otherwise objective successes seem to be personal failures
Albert BanduraPeople who underestimate their capabilities also bear costs, although, as already noted, these are more likely to take self-limiting rather than aversive forms. By failing to cultivate personal potentialities and constricting their activities, such persons cut themselves off from many rewarding experiences. Should they attempt tasks having evaluative significance, they create internal obstacles to effective performance by approaching them with unnerving self-doubts
Albert BanduraWhen actions are followed by events that are not causally related to the prior acts, people often erroneously perceive contingencies that do not, in fact, exist
Albert Bandura