Omo Moses, now a math activist like his father, Bob Moses, remembers when he realized his father was more than just his dad. At school, he was told a great hero from the Civil Rights Movement was coming to visit. After seeing his dad, he "had a sense that who he was meant a lot to people — beyond just being my dad." After his death, we remember how the Harlem boy became a beloved activist, educator, visionary and leader.