Albert Bandura Quote

People who are burdened by acute misgivings about their coping capabilities suffer much distress and expend much effort in defensive action... they cannot get themselves to do things they find subjectively threatening even though they are objectively safe. They may even shun easily manageable activities because they see them as leading to more threatening events over which they will be unable to exercise adequate control

Social foundations of thought and action: a social cognitive theory (ed. Prentice Hall, 1986)