We grow up never questioning that which is unquestioned around us.

It was not until we saw the picture of the earth, from the moon, that we realized how small and how helpless this planet is - something that we must hold in our arms and care for.

Mothers are a biological necessity; fathers are a social invention

I used to say to my classes that the ways to get insight are: to study infants; to study animals; to study primitive people; to be psychoanalyzed; to have a religious conversion and get over it; to have a psychotic episode and get over it; or to have a love affair with an old Russian. And I stopped saying that when a little dancer in the front row put up her hand and said, 'Does he have to be old?

If one cannot state a matter clearly enough so that even an intelligent twelve-year-old can understand it, one should remain within the cloistered walls of the university and laboratory until one gets a better grasp of one's subject matter.

Photographs [are] of course heavily dependent upon the culture, the disciplinary point of view and the idiosyncratic vision of the particular photographer-analyst.

where families suffer from disasters that are preventable, this is a measure of a whole nation's neglect. A society imperils its own future when, out of negligence or contempt, it overlooks the need of children to be reared in a family ... or when, in the midst of plenty, some families cannot give their children adequate food and shelter, safe activity and rest, and an opportunity to grow into full adulthood as people who can care for and cherish other human beings like themselves.