Since ancient Greece a lot of philosophy has been devoted to the discussion of what is real, elaborations on the question of whether, when a tree falls in a forest and no one hears it happen, does it make any noise? They want to know what is “the thing in itself.” Is it your idea of the thing, the sum of your perceptions, or does it exist independently of perception? Philosophers have spent their lives considering this, arguing, trying to explain the nature of reality. What good has it done, actually?
I see that as a frivolous puzzle. I am, and that’s that. The sound of my alarm clock, the water I wash my face with, the coffee I drink, all that is real. Philosophy, love of knowledge, is valuable if it guides me in my thinking and my behavior. Truly valuable ideas and insights influence how we think and live, the way we treat each other, how to find and fulfill our purpose in life. The rest is mind games.
Nick Hilton - Reflections 