If a cluttered desk is a sign of a cluttered mind, of what,... - Albert Einstein

"Teaching should be such that what is offered is perceived as a valuable gift and not as hard duty. Never regard study as duty but as the enviable opportunity to learn to know the liberating influence of beauty in the realm of the spirit for your own personal joy and to the profit of the community to which your later work belongs."

"Never memorize something that you can look up."

"Love is a better teacher than duty."

"A foolish faith in authority is the worst enemy of truth."

"I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones."