God will test the sincerity of men. Those who will deny self, take up the cross, and follow Christ will have a continual work to do in the line of restoring the fallen human order. Those who sacrifice for truth make a great impression on the world. Their example is contagious and convincing. Men see that there is in the church that faith which works by love and purifies the soul. But when those who profess to be working for God seek to benefit themselves, they greatly retard the work and cast a reproach upon it. . . .
– Medical Ministry, pg. 132