Expertness of taste is at once the result and reward of constant exercise of thinking. - John Dewey

The application of scientific formulations of the principle of probability statistically determined is thus a logical corollary of the principle already stated, that the subject matter of scientific findings is relational, not individual. It is for this reason that it is safe to predict the ultimate triumph of the statistical doctrine.

The only way to prepare for social life is to engage in social life. To form habits of social usefulness and serviceableness apart from any direct social need and motive, apart from any existing social situation, is, to the letter, teaching the child to swim by going through motions outside of the water.

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