The brain is like a muscle. When it is in use we feel very good. Understanding is joyous.
Those who draw their sustenance from science are blessed. It is for me to only derive an occasional pleasure. This is nothing worthy of conceit, but I am indeed touched by the joys. This book is an ode to such joys, a digest of my collections from various sources.
Perhaps the best reason for regarding mathematics as an art is not so much that it affords an outlet for creative activity as that it provides spiritual values. It puts man in touch with the highest aspirations and lofiest goals. It offers intellectual delight and the exultation of resolving the mysteries of the universe.
In reading, a lonely quiet concert is given to our minds; all our mental faculties will be present in this symphonic exaltation.
I would not, if I could, give up the memory of the joy I have had in books for any advantage that could be offered in other pursuits or occupations. Books have been to me what gold is to the miser, what new fields are to the explorer.
Pleasure must be found in study.