Wundt, Wilhelm (1832-1920) (12)
Schopenhauer, Arthur (1788-1860)(6)
Goethe, Johann Wolfgang von (1749-1832)(5)
Hegel, Georg Wilhelm Friedrich (1770-1831)(5)
Nietzsche, Friedrich (1844-1900)(5)
Darwin, Charles (1809-1882)(4)
Dilthey, Wilhelm (1833-1911)(4)
Lamprecht, Karl (1856-1915)(4)
Fichte, Johann Gottlieb (1762-1814)(3)
Hartmann, Eduard von (1842-1906)(3)