Docēre, the Latin root for doctor, means to teach. At the heart of what we do as physicians is teaching; we teach our patients, their families, and our future physicians. Why do we devote so much time to education? No matter how well we diagnose and treat, if patients and families do not understand their treatment, it may be unsuccessful. No matter how knowledgeable and skillful we are, if we do not nurture the next generation, key knowledge, skills, and values will disappear.