by Bertrand Russell
by Immanuel Kant
by David Hume
by David Hume
by Arthur Schopenhauer
by Bertrand Russell
by Immanuel Kant
by René Descartes
by Arthur Schopenhauer
by John Stuart Mill
by John Stuart Mill
by Immanuel Kant
by George Berkeley
by Bertrand Russell
by Arthur Schopenhauer
by Alfred North Whitehead
by Rudolf Steiner
by Alexander Philip
by Herbert Spencer
by Joseph Dietzgen
by John Stuart Mill
by John Stuart Mill
by David Hume
by Alfred North Whitehead
by Rudolf Steiner
by H. A. (Harold Arthur) Prichard
by David Hume
by Anonymous
by David Hume
by Robert Musil
by Andres Piquer
by Karin Stephen
by Herbert Wildon Carr
by Plato
by Immanuel Kant
by George Stuart Fullerton