A Fox entered the house of an actor and, rummaging through all his properties, came upon a Mask, an admirable imitation of a human head. He placed his paws on it and said, "What a beautiful head! Yet it is of no value, as it entirely lacks brains.".\n\n>-- Aesop Fable
A mathematician is a machine for turning coffee into theorems.\n\n>-- Paul Erdos
The brain is a monstrous, beautiful mess. Its billions of nerve cells - called neurons - lie in a tangled web that displays cognitive powers far exceeding any of the silicon machines we have built to mimic it.\n\n-- William F. Allman
The seat of the soul and the control of voluntary movement - in fact, of nervous functions in general, - are to be sought in the heart. The brain is an organ of minor importance.\n\n>-- Aristotle
And of course, the brain is not responsible for any of the sensations at all. The correct view is that the seat and source of sensation is the region of the heart.\n\n>-- Aristotle
The human brain, then, is the most complicated organization of matter that we know.\n\n>-- Isaac Asimov
No, indeed; I don't know anything. You see, I am stuffed, so I have no brains at all.\n\n>-- L. Frank Baum 
The brain is the great factory of thought. To it are directed all the forces of nature, forces which, for thousands of years, have been expending themselves upon it and impressing on it a slow and continuous motion of evolution.\n\n>-- Leonardo Bianchi
The brain struggling to understand the brain is society trying to explain itself.\n\n>-- Colin Blakemore
Anybody who watches three games of football in a row should be declared brain dead.\n\n>-- Erma Bombeck  
Brain: an apparatus with which we think that we think. Mind, n. A mysterious form of matter secreted by the brain.\n\n>-- Ambrose Bierce
Just as brain development has greatly increased the range and scope of perception (that is, the receptive side of its activities) so it has enhanced the range and power of man's control over his environment.\n\n>-- Lord Brain
There are in the human mind a group of faculties and in the brain groups of convolutions, and the facts assembled by science so far allow to state, as I said before, that the great regions of the mind correspond to the great regions of the brain.\n\n>-- Paul Broca
Beauty can't amuse you, but brainwork -- reading, writing, thinking -- can.\n\n>-- Helen Gurley Brown 
Children use the fist until they are of age to use the brain.\n\n-- Elizabeth Barrett Browning 
As long as our brain is a mystery, the universe, the reflection of the structure of the brain will also be a mystery.\n\n>-- Santiago Ramon y Cajal 
The brain is a world consisting of a number of unexplored continents and great stretches of unknown territory.\n\n>-- Santiago Ramon y Cajal 
Impressions arriving at the brain make it enter into activity, just as food falling into the stomach excites it to more abundant secretion of gastric juice.\n\n>-- Pierre Cabanis 
Sleep affords the opportunity, within certain limits, for the brain to act of itself, and dreams are the result.\n\n>-- Edward Clarke