W. Austin Gardner
Missionary requirement

The missionary must be ready to be flexible, adaptable and sacrificial, to receive no credit but be willing to give credit, and even to be discredited, to be debased, to suffer and yet steadily and unwaveringly—without murmur and doubt—seek identification with other people in their experienced needs and demands in order to find points of contact and departure. He must seek ways and means to create within them a consciously felt spiritual need for the purpose of relating them to Christ who alone can meet their hearts’ desire, forgive their sins, bestow eternal life, and give true and satisfying meaning to their lives. Only the mind of true servanthood can lead us to such relationships, identification and ministry.
George W. Peters, A Biblical Theology of Missions (Chicago, IL: Moody Press, 1972), 295–296.