It is said that we should be honest inside and perform sincerely outside.The outside sincerity is the representation of the inside honesty.However,we are challenged by the crisis of honesty,and the establishment of a sincere and harmonious society depends on the fostering of the individual honesty.The feature of honesty can be realized by cultivation,while the strengthening of sincerity is an effective method.By means of public opinion,customs and social regulations,we can impose norms and regulations on individuals and foster the sincere behavior of individuals.Only when individuals choose to be honest and sincere voluntarily can we ensure the honesty and sincerity of individuals.