The notion that "applied" knowledge is somehow less worthy than "pure" knowledge, was natural to a society in which all useful work was performed by slaves and serfs, and in which industry was controlled by the models set by custom rather than by intelligence. Science, or the highest knowing, was then identified with pure theorizing, apart from all application in the uses of life; and knowledge relating to useful arts suffered the stigma attaching to the classes who engaged in them.

A being connected with other beings cannot perform his own activities without taking the activities of others into account. For they are the indispensable conditions of the realization of his tendencies. When he moves he stirs them and reciprocally.

By reading the characteristic features of any man's castles in the air you can make a shrewd guess as to his underlying desires which are frustrated.

To pull at a rope at which others happen to be pulling is not a shared or conjoint activity, unless the pulling is done with knowledge that others are pulling and for the sake of either helping or hindering what they are doing.

Etymologically, the word education means just a process of leading or bringing up.

Cease conceiving of education as mere preparation for later life, and make it the full meaning of the present life.

Knowledge falters when imagination clips its wings or fears to use them.