Nietzsche expressed far more spirituality in his warrior philosophy than did the sham Christians he criticized. What made Nietzsche an archetype of spiritual self-realization was his celebration of his own life (though it was not a happy one) with irony and humor, accepting and even loving his fate (what he called “amor fati”). What opposes spirituality is not naturalism, or secularism, or even materialism, but petty egoism, vanity, and vulgarity.
Robert C. Solomon,
Spirituality for the Skeptic: The Thoughtful Love of Life (via
ludimagister)