Such words as "society" and "community" are likely to be misleading, for they have a tendency to make us think there is a single thing corresponding to the single word.

Liberty is not just an idea, an abstract principle. It is power, effective power to do specific things. There is no such thing as liberty in general; liberty, so to speak, at large.

Inside the modern city, in spite of its nominal political unity, there are probably more communities, more differing customs, traditions, aspirations, and forms of government or control, than existed in an entire continent at an earlier epoch.

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

The development occurs through reciprocal give-and-take, the teacher taking but not being afraid also to give.

The bad man is the man who no matter how good he has been is beginning to deteriorate, to grow less good. The good man is the man who no matter how morally unworthy he has been is moving to become better. Such a conception makes one severe in judging himself and humane in judging others.

Men have never fully used [their] powers to advance the good in life, because they have waited upon some power external to themselves and to nature to do the work they are responsible for doing.