The Book agrees 

I have been contemplating much of my life on the fact that truth can only be found when you know the opposite.  You can’t understand white without seeing black.  What is left without right?  What is true without a lie?  Pleasure without pain is meaningless.  So many things can only be truly understood when you also understand their opposite. 

This morning I am re reading The Book from Alan watts.  He says  


Maybe that is where that brain work came from.  However long ago I read it I have found it to be true all my life so far.