Ptolemy,
Ptolemy's Tetrabiblos
(1900)
“ It appears, therefore, by the whole of what has been already delivered, that the effective influence of the stars must be considered as arising not only from their own peculiar natures and properties, but also from the quality of the surrounding signs, and from configuration with the Sun and the angles; all which has been pointed out. The influence of each planet, however, is strengthened chiefly when it may be oriental, swift and direct in its proper course and motion—for it has then its greatest power: but, on the other hand, it loses strength when occidental and slow in motion or retrograde ”
