Those ornamentals and these accidentals never they will meet

Let's say you are in New York for the first time and you want to get a cab. Obviously what you are doing is somehow trying to use your own experience of getting a cab, and combining it with seeing other people getting a cab (more determined perhaps than you are, but alas depends on from where you started), and you will notice after some tries, that it is useless to flag down cabs with no lights on, and you realize, that as long as you don't step down from the pavement, they will make no move towards you, and so on, and so on, and so by failing several times, and employing other strategies, and by observation and reflection in the end you will get a cab in New York.