“I suddenly realized that through no act of my own I had become biologically related to a new human being.”

The assumption that men and woman are essentially alike in all respects, or even in the most important ones, is a damaging one, as damaging as the assumption that they are different in ways in which they aren’t different, perhaps more so.

A small group of thoughtful people could change the world.

Of course we need children! Adults need children in their lives to listen to and care for, to keep their imagination fresh and their hearts young and to make the future a reality for which they are willing to work.

The people of one nation alone cannot save their own children; each holds the responsibility for the others’ children.

Motherhood is a biological fact, while fatherhood is a social invention.

Grandparents are given a second chance to enjoy parenthood with fewer of its tribulations and anxieties.

Parents feel like immigrants in the country of the young.

The time has come, I think, when we must recognize bisexuality as a normal form of human behavior.

The atmosphere is the key symbol of global interdependence.

Men have always been afraid that women could get along without them.

Home, I learned, can be anywhere you make it. Home is also the place to which you come back again and again.

Always remember that you are absolutely unique. Just like everyone else.

People are still encouraged to marry as if they could count on marriage being for life, and at the same time they are absorbing a knowledge of the great frequency of divorce.

An ideal culture is one that makes a place for every human gift.

It is an open question whether any behavior based on fear of eternal punishment can be regarded as ethical or should be regarded as merely cowardly.

Loving you is just like breathing, as effortless, and as lovely.

What’s been gratifying is to live long enough to see molecular biology and evolutionary biology growing toward each other and uniting in research efforts.

I just want everybody to know that I’m opposed to an unauthorized biography on anybody.

Man can be understood only by ascending from physics, chemistry, biology, and geology. In other words, he is first of all a cosmic problem.

We study biology, physics, movements of glaciers… Where are the classes on envy, feeling wronged, despair, bitterness.

Downloading a Tamagotchi egg onto my phone is possibly the loudest my biological clock has ever ticked.

We are living in times when technology, biology and chemistry have created the possibility of killing in large numbers.

After all, our families–our ancestors–are our identities. Biology is destiny.

Not biology, but ignorance of ourselves, has been the key to our powerlessness