“When Convention is Contaminated:

Brain cannot survive the vacuum of space, mind cannot survive the vacuum of time - so the body produces spinal fluid for the brain to float, and the brain produces beliefs for the mind to survive. But while the immune system keeps the spinal fluid sterilized of infection without conscious intervention, brain does nothing to keep beliefs sterilized of prejudice, unless you make it a habit to question convention.

Choose to fight physical infection or not, your body will do it for you, but as for psychological contaminations, you have to fight them yourself - the faculties are already carved in your brain circuits, but you have to be willing to use them, defying the comforting fantasies of convention, that's how an ape evolves into human.”