The brain is a three pound mass you can hold in your hand that can conceive of a universe a hundred billion light-years across. Marian Diamond More Quotes by Marian Diamond More Quotes From Marian Diamond If you always do what you did, you'll always get what you got. Marian Diamond emotional workout change The human brain is the most complex mass of protoplasm on earth-perhaps even in our galaxy. Marian Diamond mass earth brain
