Human history began as an act of disobedience, and it is not unlikely that it will be terminated by an act of obedience. At this point in history the capacity to doubt, to criticize and to disobey may be all that stands between a future for mankind and the end of civilization.

Erotic love begins with separateness, and ends in oneness. Motherly love begins with oneness, and leads to separateness.

The right to express our thoughts means something only if we are able to have thoughts of our own

Just as love for one individual which excludes the love for others is not love, love for one's country which is not part of one's love for humanity is not love, but idolatrous worship.

This Marxian sentence, repeated to the point of boredom, is misinterpreted. In reality [Karl] Marx was a "religious" man.

Actually, if you take the average American, and studies have shown that, he is really concerned only with private affairs; that is to say, with his health, his money and family affairs.

For the most part, biophiliacs,lovers of life, are found among simple people, without pretensions.