Man's most human characteristic is not his ability to learn, which he shares with many other species, but his ability to teach and store what others have developed and taught him.

The problem with America today is that too many people know too much about not enough.

The protection of a ten-year-old girl from her father's advances is a necessary condition of social order, but the protection of the father from temptation is a necessary condition of his continued social adjustment. The protections that are built up in the child against desire for the parent become the essential counterpart to the attitudes in the parent that protect the child.

the task of each family is also the task of all humanity. This is to cherish the living, remember those who have gone before, and prepare for those who are not yet born.

It is of very doubtful value to enlist the gifts of a woman into fields that have been defined as male; it frightens the men, unsexes the women, and muffles and distorts the contribution women could make.

We need every human gift and cannot afford to neglect any gift because of artificial barriers of sex or race or class or national origin.

Earth Day is the first holy day...and is devoted to the harmony of nature... The celebration offends no historical calendar, yet it transcends them all.