Erik Erikson:
爱利克埃里克森美国著名精神病医师，新精神分析派的代表心理社会阶段（人格发展阶段）理
Erik Erikson's eight stages of psychological development
Stage1:early infancy (about 1 year old)
Trust vs. distrust          Infants require comfort from caregivers to develop a sense of trust towards others and their surroundings. If this comfort is not provided, mistrust will be developed.