Then Inquire

Here the ways of men part: if you wish to strive for peace of soul and pleasure, then believe; if you wish to be a devotee of truth, then inquire.

-- Friedrich Wilhelm Nietzsche (1844 - 1900), German philosopher, cultural critic, and writer, Letter to Elisabeth Nietzsche, Bonn, (11 June 1865), quoted in Walter Kaufmann, The Faith of a Heretic (opening epigram)