a single factor cannot determine entire whole for all

 what i mean is, (typically the human logic /illogic emotional reasoning says)

that since one person wakes up early in the morning and is a successful business man or woman that  "everyone who gets up early is successful"

or  "in order to be successful you have to be an early riser (4, 5, 6 am )"

other examples of ridiculous single factor thinking:

all men/males or women/females are bad simply due to their sex genetic code

all people born on the same day or under the same astrological sign during a given 4 week period are all the same

blondes have more fun

any of these single factor things are positive for all people/anyone and any of these single things will make people like you and you will be accepted, successful and famous anywhere you go :

wearing certain clothes, attire, shoes or colors 
saying certain words
you can sing, dance, read out loud
you have a "perfect' body
you have a "high" iq

all people with the same name, eg: david, are the same way (this is the thinking of a very young child. it is childish)