“An academic discipline, or any other semiotic domain, for that matter, is not primarily content, in the sense of facts and principles. It is rather primarily a lived and historically changing set of distinctive social practices. It is in these practices that 'content' is generated, debated, and transformed via certain distinctive ways of thinking, talking, valuing, acting, and, often, writing and reading.”

“Learning is a deep human need, like mating and eating, and like all such needs it is meant to be deeply pleasurable to human beings.”

“But the operation of writing implies that of reading as its dialectical correlative and these two connected acts necessitate two distinct agents. It is the joint effort of author and reader, which brings upon the scene that concrete and imaginary object which is the work of the mind. There is no art except for and by others.”

“You can never recover from losing a person you love, but you can find a way to let it be part of your life rather than letting it take over every part of you”

“If the generations of mankind suffered and laid down their lives; if martyrs sang in the fire... for no other end than that a race of creatures of such unexampled insipidity should succeed, and protract... their contented and inoffensive lives, why, at such a rate... better ring down the curtain before the last act of the play, so that a business that began so importantly may be saved from so singularly flat a winding up.”

“No fossil is buried with its birth certificate. That, and the scarcity of fossils, means that it is effectively impossible to link fossils into chains of cause and effect in any valid way... To take a line of fossils and claim that they represent a lineage is not a scientific hypothesis that can be tested, but an assertion that carries the same validity as a bedtime story—amusing, perhaps even instructive, but not scientific.”

“In any case, do you really think kids even want something that is relevant to their daily lives? You think something practical like compound interest is going to get them excited? People enjoy fantasy, and that is just what mathematics can provide -- a relief from daily life, an anodyne to the practical workaday world.”