sacrifice?

"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? Away with the word in such a view, and with such a thought! It is emphatically no sacrifice. Say rather it is a privelege. Anxiety, sickness, suffering or danger, with a foregoing of the common conveniences and charities of this life may make us pause, but let this only be for a moment. all these are nothing when compared with the glory which shall be revealed in and for us. I never made a sacrifice." - David Livingstone