— — ʻIsâ ibn Ishâq ibn Zur’a [24].

Anaxagoras [27], [51], [58], [74].

Apollonius von Tyane [72].

Aristoteles [19], [21]–23, [26]–32, [56], [69], [74], [83], [91], [96], [98], [100] f., [107], [110] f., [115] f., [118], [120]–122, [134], [142], [151], [166]–169, [172]–174, [177], [180], [184], [186], [188].

Aryabhata [130].

Ascharî [55] f., [160].

abu-l-Atâhia [63].

al-ʻAufî [79].

Augustinus, S. [140], [145].

Avempace s. ibn Bâddscha.