Socrates was an influential ancient Greek philosopher born in Athens in 470 BC. He spent his time questioning prominent citizens and politicians in the marketplace using his "Socratic method" to expose inconsistencies or ignorance in their beliefs. Though he wrote nothing himself, he taught Plato and was known for saying "the unexamined life is not worth living." He was tried for corrupting the youth and impiety, found guilty, and sentenced to death by drinking poison hemlock.