For example, chapter two of the Judaeo-Arabic theologic-philosophical work by Natan'el al-Fayyumi, The Garden of Intellects (Bustan al-‘uqul), written in Yemen in 1165, includes a correspondence between the numbers 1 through 10 and ten scientific and philosophical concepts (soul's faculties, senses, directions, bodily substances and parts, etc.) most of which are identical to those listed by the Brethren of Purity.