From "12 Monkeys: Immortal (#2.6)"
[of the Witness
] What did he say to you?
Dr. Cassandra Railly
He, um... He told me he wants to destroy time. So there'd be no more death. He made it sound almost beautiful.
Well, it's not. Death is like... everything. It's a time clock that makes us better. Makes us love harder. I don't know. I think it's, like, maybe what makes us human.