As Dr. Gattegno wrote The Science of Education treatise, he delved deep into the root of learning. This journey took him into the brain, through the ages, and caused him to greatly consider evolution and human potential. He put some of his findings aside for use in this book. Scientists of education may find this slim volume indispensable for their study of memory and its place in our ways of educating the young. "Looking at all the references made to evolution in my writings on education over 30 years, I now find here and there a link of what is cardinal in this book: that individuality is the key to understanding evolution." - Caleb Gattegno