It is essential to understand our brains in some detail if we are to assess correctly our place in this vast and complicated universe we see all around us.

There are those among us who would have us say that the mysteries of the brain are completely solved and little needs to be added to its knowledge. It is as if these fortunate persons had been present when this magnificent organ was created.

it’s precisely the infinite that casts light upon how the brain thinks, and how clever it is in showing us something that seems real when it’s merely an abstraction, namely that brain introduced or employed to great effect those methods of distortion, that dislocation

The brain is a mystery—it has been—and still will be. Not that we do not know many facts about it. The facts we know have indeed greatly multiplied in recent years, but they all fail to give us a key to the mystery of how it creates—if it does create—our thoughts and feelings; that is, said more concisely though less concretely, our mind.

The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.

The human brain is evolution's most magnificent disaster, a beautiful and glorious cesspool of brilliant analytical powers, infinite creativity, and pure madness.

Imagine the inside of St. Peter’s in Rome filled with a huge quantity of fibers around a millimeter in diameter that crisscross the building in every direction creating a firm mat – then you have an idea of what the brain looks like when magnified a thousand times.

The brain is the last and grandest biological frontier, the most complex thing we have yet discovered in our universe. It contains hundreds of billions of cells interlinked through trillions of connections. The brain boggles the mind.

Our brains are either our greatest assets or our greatest liabilities.

How difficult is it to define a brain? We know that the brain must be somewhere hidden in the genome [which] fits in a CD-ROM. It's not that complicated. It's easier than Microsoft Windows. ...[A]bout 2% of the genome is coding for proteins, and maybe about 10%... tells you when to express which protein, and the remainder is mostly garbage. It's old viruses that are left over and it's never been properly deleted [etc.] because there are no real code revisions in the genome. ...How much of this 10%, [i.e.,] about 75 megabytes code for the brain, we don't really know. What we do know is that we share almost all of this with mice. Genetically speaking, a human is a pretty big mouse, with a few bits changed to fix some of the genetic expressions. ...Most of the stuff there is going to code for cells and metabolism and what your body looks like, [etc.]...

It is about the brain.

Every time I open a child's head and see a brain, I marvel at the mystery: This is what makes every one of us who we are. This is what hold all our memories, all our thoughts, all our dreams. This is what makes us different from each other in millions of ways.

The point of a brain is that it's not one huge neural network with feedback, it has up to 50 to 60 identified areas, all of which have feedback and all of which are capable of knowledge storage. We've got a complex system and, within this complex system, we can start discovering what the mechanisms that support deliberation are. Consciousness must come out of these interactions.

Men sneered at vivisection, and yet look at its results today! Why not advance science in its most difficult and vital aspect, the knowledge of the brain?