I may have lost my heart, but not my self-control.

The world is full of obvious things which nobody by any chance ever observes.

To love means to open ourselves to the negative as well as the positive - to grief, sorrow, and disappointment as well as to joy, fulfillment, and an intensity of consciousness we did not know was possible before.

We begin with the hypothesis that any subject can be taught effectively in some intellectually honest form to any child at any stage of development.