for more on wiesel's life and legacy we bring in warren lieberman.d the world, from u.s. president barack obama and benjamin netanyahu. >> reporter: president obama had one of the most powerful messages coming in. this is not just an israeli story or jewish story. he wrote more than 50 books, many in french or english. the best well known is "night." chronicling his time in auschwitz. it was followed by "dawn" and "day." it was these messages that we've seen resonating. president barack obama calls elie wiesel our consciousness of the world. he says he was one of those people who changed the world, more as a citizen of the world than his power. his life urges us to be better. we must summit our capacity for good. in the face of cruelty we must live with empathy and compassion. we must never be bystanders to injusti injustice. just imagine the peace and justice in our world if we all lived a little more like elie wiesel. he was a holocaust survivor and educator. more than that, he was a human rights advocate who spoke not only for his people but for t