Abbagnano, Nicola (1901-1990)

Adorno, Theodor Wiesengrund (1903-1969)

Alanus ab Insulis/Alain de l’Isle (ca. 1128-1203)

Alighieri, Dante (1265-1321)

Althusser, Louis (1918-1990)

Anders/Stern, Günther (1902-1992)

Andreas-Salomé, Lou (1861-1937)

Anscombe, Gertrude Elizabeth Margaret (1919-2001)

Apel Karl – Otto (1922)

Apuleius, Lucius (125-ca. 170)

Arendt, Hannah (1906-1975)

Aristoteles (384-322 B.C.)

Athenaeus Naucratita (2^nd-3^rd cent.)

Averroës/Ibn Rusd, Abu ‘l-Walid Muhammad ibn Ahmad ibn Muhammad (1126-1198)

Avicenna/Ibn Sina, Abu ^cAli al-Husayn ibn ^cAbdallah (980-1037)

Ayer, Alfred Julius (1910-1989)