All education which develops power to share effectively in social life is moral.

To be interested is to be absorbed in, wrapped up in, carried away by, some object. To take an interest is to be on the alert, to care about, to be attentive.

Teaching can be compared to selling commodities. No one can sell unless someone buys ... yet there are teachers who think they have done a good day's teaching irrespective of what the pupils have learned.

Everything which bars freedom and fullness of communication sets up barriers that divide human beings into sets and cliques, into antagonistic sects and factions, and thereby undermines the democratic way of life.

The interaction of knowledge and skills with experience is key to learning.

The intellectual content of religions has always finally adapted itself to scientific and social conditions after they have become clear.... For this reason I do not think that those who are concerned about the future of a religious attitude should trouble themselves about the conflict of science with traditional doctrines.

Language exists only when it is listened to as well as spoken. The hearer is an indispensable partner.