Throughout history, females have picked providers for males. Males pick anything.

...recognize and respect Earth's beautiful systems of balance, between the presence of animals on land, the fish in the sea, birds in the air, mankind, water, air, and land. Most importantly there must always be awareness of the actions by people that can disturb this precious balance.

Contentment can be bought at a price that one can not possibly pay.

The United States has the power to destroy the world, but not the power to save it alone

Our human situation no longer permits us to make armed dichotomies between those who are good and those who are evil, those who are right and those who are wrong. The first blow dealt to the enemy's children will sign the death warrant of our own.

In each age there is a series of pressing questions which must be asked and answered. On the correctness of the questions depends the survival of those who ask; on the quality of the answers depends the quality of the life those survivors will lead.

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.