Peter Abelard, considered by many scholars to have been the greatest thinker and teacher of the 12th century, may have been a man born ahead of his time. His time, at any rate, treated him roughly. Philosophy and theology were taken very seriously indeed, and Abelard's fresh and logical critiques of both got him in constant trouble with the church. Beyond all this, however, what makes his name endure was his lifelong love affair with one of his students, Heloise. They had a baby and were secretly married. The couple separated when Abelard became a monk and Heloise became a nun to hide from Canon Fulbert's rage. They continued to exchange love letters for the rest of their lives.