As in taking the Fortitudes of the Planets, great care ought to be had, so their Debilities must be observed with no less care and prudence; wherein I advise you to beware of the Effects or Influence of a Planet when he is in his Detriment, rather than when he is in his Fall. For a Planet in his Detriment is like a person cast out of all his Estate without hopes of Recovery, whereas the Fall shews but a present subjection unto a misfortune with hopes of Recovery; but these things are only introductory. - William Lilly (1602.-1681.)