Where family security is lacking, the individual is handicapped by the lack of a secure base from which to work.

It is a pity that one cannot require field work in another society of every aspiring investigator of child development.

The infant uses the mother as a secure base from which to explore.

One swallow does not make a spring.

-- Aristotle

To exist is to change, to change is to mature, to mature is to go on creating oneself endlessly.

-- Henri Bergson

Pain passes, but beauty remains.

-- Pierre-Auguste Renoir