"Science is nothing but perception." (Plato)

This quote means that the science we understand is made of measurements and observations (perception). If the way we perceive the world is flawed, science would be meaningless. In addition, with the experiment we did in the tok lesson (involving the gorilla and people passing balls), our brains can choose to ignore what we see. This can mean that we are unable to perceive the whole truth as our brain might filter out things, thus possibly rendering science useless.