It is of immense importance, whether in the internal spiritual life or the external worldly career, to cultivate the art of detecting, recognizing, and accepting opportunity. Two factors need especially to be remembered here. First, sometimes she presents her face plainly and unmistakably, but more often she presents two faces each equally attractive and each claiming to bear her name: or else she disguises herself under the garb of commonplace events and unprepossessing personalities. Second, she never repeats the same situation with the same chances in precisely the same way. With altered conditions, the same causes cannot produce the same phenomena. To miss those chances through ignorance or the blindness of unpreparedness, through logic's limitation or the dismissing of intuition, is to miss portions of success or happiness that could easily have been ours.
-- Notebooks Category 13: Human Experience > Chapter 2 : Living in The World > # 194
