"Education has been given us from above for the purpose of bringing to the benighted the knowledge of the Saviour. If you knew the satisfaction of performing a duty, as well as the gratitude to God which the missionary must always feel in being chosen for so noble and sacred a calling, you would feel no hesitation in embracing it. For my own part I have never ceased to rejoice that God has appointed me to such an office. People talk of the sacrifice I have made in spending so much of my life in Africa. Can that be called a sacrifice which is simply paid back as a small part of a great debt owing to our God, which we can never repay?"