Our country also hungers for leadership to ensure the long-term survival of our Social Security system. With 70 million baby boomers in this country on the verge of retirement we need to take action to shore up the system.

It has yet to be proven that intelligence has any survival value.

It is not clear that intelligence has any long-term survival value.

I still have a photo on my wall of the greatest idol I will ever have in my life and it's myself at eight. Because that's when the forces of imagination have the same value as the real world when they're an instrument of survival: when my mother disappeared and I imagined a mother. That was me at my best.

Humor can be one of our best survival tools.

In the kind of world we have today transformation of humanity might well be our only real hope for survival.

To cherish what remains of the Earth and to foster its renewal is our only legitimate hope of survival.

At a time when unbridled greed malignant aggression and existence of weapons of mass destruction threatens the survival of humanity we should seriously consider any avenue that offers some hope.

Survival requires us to leave our prejudices at home. It's about doing whatever it takes - and ultimately those with the biggest heart will win.

The only justification for repressive institutions is material and cultural deficit. But such institutions at certain stages of history perpetuate and produce such a deficit and even threaten human survival.