Eric Weiner
Platone
Simone Weil
Alexander G. Baumgarten
Pseudo-Aristotele
Giovanni Reale
Sinesio di Cerene
Blaise Pascal
Lucio Anneo Seneca
George Edward Moore
Huìnéng
Charles-Louis de Montesquieu
Plutarco
Friedrich Nietzsche
Osho
Johann Gottfried Herder
Ernst Cassirer
Martin Heidegger
Eihei Dōgen
Denis Diderot
Michel de Montaigne
Confucio
Benedictus de Spinoza
Stefano Ercolino, Massimo Fusillo