Nietzsche's Voices, a much-anticipated volume of the Collected Writings of John Sallis, presents his two-semester lecture course on Nietzsche offered in the Philosophy Department of Duquesne University during the school year 1971–72.

"Nietzsche is easy to read; his is apparently the easiest of all the great philosophies. Yet the easy intelligibility is deceptive. Nietzsche's writings make us believe we have understood when in fact we have not. His philosophy is actually the exact opposite of easy," says Sallis. With this warning always in mind, Sallis first discusses Nietzsche's life and the relevance of the ancient Greeks to his thought and then analyzes Nietzsche's views on truth, history, morality, and the death of God. The entire second half of the book is devoted to Nietzsche's main work, the tragic, comedic, poetic Thus Spoke Zarathustra.

Nietzsche's Voices offers a sensitive and brilliant introduction to the thought of Friedrich Nietzsche, as presented by one of today's most significant philosophers.