“Study the assumptions behind your actions. Then study the assumptions behind your assumptions.”

“Check your assumptions. In fact, check your assumptions at the door.”

“[B]egin challenging your own assumptions. Your assumptions are your windows on the world. Scrub them off every once in a while or the light won’t come in.”

“Any approach to the study of organizations is built on specific assumptions about the nature of organizations and how they are designed and function.”

“Your assumption, and the truth, dine at totally separate tables.”

“I urge you to examine in your own mind the assumptions which must lay behind using the police power to insist that once-sovereign spirits have no choice but to submit to being schooled by strangers.”

“Whether or not your actions are determined, you have to act on the assumption that you have free will. If you are determined, your attempt at free will loses you nothing. However, if you are not determined and you act on the assumption that you are, you will never attempt anything. You will simply be a passive blob that things happen to.”

“Do not let your assumptions about a culture block your ability to perceive the individual, or you will fail.”

“Your assumptions are your windows on the world. Scrub them off every once in a while, or the light won't come in.”

“Almost as soon as I began to study philosophy, I was impressed by the way in which philosophical problems appeared, disappeared, or changed shape, as a result of new assumptions or vocabularies.”