Integrity is one of the virtues for which Quakers in the past have been praised. It is a quality worth having, but it is doubtful if it can be reached by self-conscious effort or by adherence to a principle… Integrity is a condition in which a person’s response to a total situation can be trusted: the opposite of a condition in which he would be moved by opportunist or self-seeking impulses breaking up his unity as a whole being. This condition of trust is different from the recognition that he will always be kind or always tell the truth. The integrity of some Dutch Friends I have met showed itself during the war in their willingness to tell lies to save their Jewish friends from the Gestapo or from starvation.

Kenneth C Barnes, 1972