Complex sentence: Throughout the 1960s Shmith remained energetic and dynamic in his development of fashion work, but by the close of the decade Shmith began to take on roles in photographic heritage and education.
Split into simpler sentences: Throughout the 1960s Shmith remained energetic and dynamic in his development of fashion work. By the close of the decade Shmith began to take on roles in photographic heritage and education.