Volunteer Teacher Susan Waldron entered college with the aspiration of becoming a doctor. But as her university studies were coming to a close, her path changed direction. Susan decided to use her science degree to become a high school teacher. A few years later, Mercy Ships entered the picture and Susan was able to combine her passions for teaching, science, and medicine on board a hospital ship in Africa. Susan answered “yes” to God’s question, “Are you willing to sacrifice eve...