Sabuco, Oliva de Nantes y Barrera (1562-?)

Said, Edward (1935-2003)

Sartre, Jean-Paul (1905-1980)

Saussure, Ferdinand de (1857-1913)

Savonarola, Girolamo (1452-1498)

Schelling, Friedrich Wilhelm Joseph (1775-1854)

Schlegel, Friedrich Karl Wilhelm von (1772-1829)

Schlick, Moritz (1882-1936)

Schopenhauer, Arthur (1788-1860)

Sellars, Wilfrid (1912-1989)

Sellars, Wilfrid (1912-1989)-Paul E. Meehl (1920-2003)

Sigerus/ius de Brabantia/Siger de Brabant (ca. 1240-1281/84)

Simmel, Georg (1858 -1918)

Sontag, Susan (1933-2004)

Spencer, Herbert (1820-1903)

Stirner, Max/Schmidt, Johann Kaspar (1806-1856)