Onecomes to believe whatever one repeats to oneself sufficiently often, whetherthe statement be true or false. It comes to be dominating thought in one'smind.
Believing that soom good can be derived from every event is a better preposition than that everything happens for the best, which is assuredly does not.
Myfather said: you must never try to make all the money that's in a deal. Letthe other fellow make some money too, because if you have a reputation foralways making all the money, you won't have many deals.