Every native species, however humble in appearance...has its place in the nation's heritage. It is a masterpiece of evolution, an ancient, multifaceted entity that shares the land with us.

The paradox is that, by children taking shortcuts through computer games, through fantasies, through movies that load on all the emotional stimulation of encountering life in a stylized way - all of this is the equivalent of mainlining of paleolithic emotions, emotions about combat, about personal success, about overcoming monsters, about making powerful friendships, about winning wars and entering new territory.

Science is not marginal. Like art, it is a universal possession of humanity, and scientific knowledge has become a vital part of our species' repertory. It comprises what we know of the material world with reasonable certainty. . . . Thanks to science and technology, access to factual information of all kinds is rising exponentially.

I believe that traditional religious belief and scientific knowledge depict the universe in radically different ways. At the bedrock they are incompatible and mutually exclusive.

I like what Abba Eban once said during the 1967 war. He said, "When all else fails, men turn to reason."

Not all ants use violence to dominate their world, some use more subtle methods.

If everyone agreed to become vegetarian, leaving little or nothing for livestock, the present 1.4 billion hectares of arable land (3.5 billion acres) would support about 10 billion people.