The only reason runaway global warming seems unstoppable is that we have not yet tried to stop it.

Seek happiness and you may or may not find it; seek grievances and you are guaranteed success.

I think the thing that I most appreciate now is that stereotypes involving Jewish identity activate fears of persecution that exist in the present day.

A spacecraft is a metaphor of national inspiration: majestic, technologically advanced, produced at dear cost and entrusted with precious cargo, rising above the constraints of the earth. The spacecraft carries our secret hope that there is something better out there-a world where we may someday go and leave the sorrows of the past behind. The spacecraft rises toward the heavens exactly as, in our finest moments as a nation, our hearts have risen toward justice and principle.

The science has changed from ambiguous to near-unanimous... Based on the data I'm now switching sides regarding global warming, from skeptic to convert.

A transition from material want to meaning want is in progress on an historically unprecedented scale-involving hundreds of millions of people-and may eventually be recognized as the principal cultural development of our age.

Though environmental orthodoxy holds that Third World deforestation is caused by rapacious clear-cutters and ruthless cattle barons, penniless peasants seeking fuel wood may be the greatest threat to our forests.