Complex sentence: As a boy, Kuhlmann suffered from a speech impediment and was often mocked for his condition; some scholars believe that this may have been why he began to frequent Breslau's libraries from an early age.
Split into simpler sentences: As a boy, Kuhlmann suffered from a speech impediment and was often mocked for his condition. Some scholars believe that this may have been why he began to frequent Breslau's libraries from an early age.