“The two limits of every unit of thinking are a perplexed, troubled, or confused situation at the beginning, and a cleared up, unified, resolved situation at the close.”

“Every one has experienced how learning an appropriate name for what was dim and vague cleared up and crystallized the whole matter. Some meaning seems distinct almost within reach, but is elusive; it refuses to condense into definite form; the attaching of a word somehow (just how, it is almost impossible to say) puts limits around the meaning, draws it out from the void, makes it stand out as an entity on its own account.”

“For, as I have suggested, disruption of the unity of the self is not limited to the cases that come to physicians and institutions for treatment. They accompany every disturbance of normal relations of husband and wife, parent and child, group and group, class and class, nation and nation. Emotional responses are so total as compared with the partial nature of intellectual responses, of ideas and abstract conceptions, that their consequences are more pervasive and enduring. I can, accordingly, think of nothing of greater practical importance than the psychic effects of human relationships, normal and abnormal, should be the object of continues study, including among the consequences the indirect somatic effects.” – The unity of the human being”

“The path of least resistance and least trouble is a mental rut already made. It requires troublesome work to undertake the alteration of old beliefs. ”

“Faith in the possibilities of continued and rigorous inquiry does not limit access to truth to any channel or scheme of things. It does not first say that truth is universal and then add there is but one road to it.”

“As we have seen there is some kind of continuity in any case since every experience affects for better or worse the attitudes which help decide the quality of further experiences, by setting up certain preference and aversion, and making it easier or harder to act for this or that end.”

“Every great advance in science has issued from a new audacity of imagination. ”