means that the world is in the eye of the
beholder; it all depends on how you look at things; all people look at things from a different
perspective and have differing opinions or views about someone, something, etc.
Everything is quantifiable in terms of individual
perception.
To him, the new house is beautiful and
grandiose in appearance; to me, it's ugly and pretentious.
It's all relative, then, isn't it?
You think you're poor? Then take a look at the
skid row bums living in the sewers downtown. Everything is relative.