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

The anonymity of the city is one of its strengths as well as - carried too far - one of its weaknesses.

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

We end up with the contradictory picture of a society that appears to throw its doors wide open to women, but translates her every step towards success as having been damaging.

Ninety-nine percent of the time humans have lived on this planet we've lived in tribes, groups of 12 to 36 people. Only during times of war, or what we have now, which is the psychological equivalent of war, does the nuclear family prevail, because it's the most mobile unit that can ensure the survival of the species. But for the full flowering of the human spirit we need groups, tribes.

We are at a point in history where a proper attention to space, and especially near space, may be absolutely crucial in bringing the world together.

In the modern world we have invented ways of speeding up invention, and people's lives change so fast that a person is born into one kind of world, grows up in another, and by the time his children are growing up, lives in still a different world