Socrates taught that the unexamined life is not worth living. This tutorial will put this bit of classical wisdom to the test. Focusing on Existentialist thinkers Soren Kierkegaard, Friedrich Nietzsche, Jean-Paul Sartre, Albert Camus, and Martin Buber, we shall seek to identify the qualities that make a human life authentic. Although these writers are alike in their Existentialist approaches, they differ widely in their ethical, metaphysical, and spiritual conclusions.