Can You Be Defined By What You Don’t Like?

I think most people tend to define themselves by listing things that they like. But can you be defined in the opposite way, by listing things that you don’t like?

It is conventional wisdom in politics that you cannot win an election by being against things. You need to tell voters what you are for in order to secure their vote.

Is the same thing true in life? Does it make a difference if you define yourself positively (what you like) rather than negatively (what you don’t)? Does life behave like photography, where everything is captured in a  photographic negative, but then that develops into a full picture?

Might there be a psychological toll associated with being consistently opposed to ideas, concepts, and even material things? Can you be defined by what you don’t like?

Related questions: Why do we like what we like? What music do you dislike that everyone else likes? When should you not follow the law?