One of the more fascinating ones was Peter the Great. He traveled through Europe with a sign around his neck reading, "I am a Student and Need to be Taught." What a terrific attitude! Far from professing to know it all, he was eager to learn.
When he returned to Russia, he was determined to modernize their archaic practices. He lined had the men lined up and cut off their robes at the knees as they were wearing them in Europe.
He also insisted beards be kept shorter or not worn at all: