Speaking in a lecture hall:
"Is not the sum of your actual experience taken at this moment and impartially added together an utter chaos? The strains of my voice, the lights and shades inside the room and out, the murmur of the wind, the ticking of the clock, the various organic feelings you may happen individually to possess, do these make a whole at all? Is it not the only condition of your mental sanity in the midst of them that most of them should become non-existent for you, and that a few others -- the sounds, I hope, which I am uttering -- should evoke from places in your memory that have nothing to do with this scene associates fitted to combine with them in what we call a rational train of thought, -- rational, because it leads to a conclusion which we have some organ to appreciate? We have no organ or faculty to appreciate the simply given order." - William James 1881.