“Is love an art? Then it requires knowledge and effort.”

“When speaking of a “body of knowledge” or of “the results of research,” e. g., we tacitly assign the same cognitive status to inherited knowledge and to independently acquired knowledge. To counteract this tendency a special effort is required to transform inherited knowledge into genuine knowledge by revitalizing its original discovery, and to discriminate between the genuine and the spurious elements of what claims to be inherited knowledge.”

“Of these two literatures, as of the intellect of Europe in general, the main effort, for now many years, has been a critical effort; the endeavour, in all branches of knowledge — theology, philosophy, history, art, science — to see the object as in itself it really is.”

“Defeating the infidels requires a much greater effort. It requires the mobilization of the nation.”

“One must always maintain one’s connection to the past and yet ceaselessly pull away from it. To remain in touch with the past requires a love of memory. To remain in touch with the past requires a constant imaginative effort.”

“If, in each hour, a man could learn a single fragment of some branch of knowledge, a single rule of some mechanical art, a single pleasing story or proverb (the acquisition of which would require no effort), what a vast stock of learning he might lay by. Seneca is therefore right when he says: "Life is long, if we know how to use it." It is consequently of importance that we understand the art of making the very best use of our lives.”

“Being a decent human being will require effort and energy…”

“Remember, no more effort is required to aim high in life, to demand abundance and prosperity, than is required to accept misery and poverty.”

“Anyone can be a barbarian; it requires a terrible effort to remain a civilized man.”

“If the advancement of the general art of programming requires the continuing invention and elaboration of paradigms, advancement of the art of the individual programmer requires that he expand his repertory of paradigms.”