“There is absolutely no substitute for hard work.”

“Graphology is another in a long list of quack substitutes for hard work. It is appealing to those who are impatient with such troublesome matters as research, evidence analysis, reasoning, logic, and hypothesis testing.”

“Your phrase: 'I am working hard at growing old', is absolutely me. What if you were always to speak in my place..”

“Lenin's methods [of "hard" centralism and mistrust of the working class] lead to this: the party organization substitutes itself for the party, the central committee substitutes itself for the organization, and, finally, a "dictator" substitutes himself for the central committee. … The party must seek the guarantee of its stability in its own base, in an active and self-reliant proletariat, and not in its top caucus … which the revolution may suddenly sweep away with its wing.”

“The work of science is to substitute facts for appearances, and demonstrations for impressions.”

“The absolute yearning of one human body for another particular body and its indifference to substitutes is one of life's major mysteries.”

“I learned the value of hard work by working hard.”

“There is absolutely no substitute for the best. Good food cannot be made of inferior ingredients masked with high flavor. It is true thrift to use the best ingredients available and to waste nothing.”

“Hard work is rewarding. Taking credit for other people's hard work is rewarding and faster.”

“You don't have to work hard to be average, work hard and smart to stand out.”