IV Tying It Together
"If we are what we are and live where we live [and believe what we believe] it is not exclusively because of our upbringing nor exclusively because of our biological inheritance. It is because we were born into a certain position in the complex pattern of human variability, and have lived in the environment of a particular culture, a specific community and family" (Huxley, Where Do You Live?) With my particular mix of nature and nurture, there is simply not much room for variation in how I see the world. My though life comes in the context of my individual "framework" Others have their own frameworks. With our unique selves, we see "truth" in a particular way.
A strongly held belief may depend on a cultural or personal whim. Albert Camus went so far as to say, "All great deeds and all great thoughts have a ridiculous beginning." (The Myth of Sisyphus) It is rare that we look into what -deep down- causes us to be attached to certain propositions. Things seem so clear, so obvious. In reality, thought, "Of course it's right" just means "It makes perfect sense to me"