Man's role is uncertain, undefined, and perhaps unnecessary.

Man's most human characteristic is not his ability to learn, which he shares with many other species, but his ability to teach and store what others have devel…

Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it's the only thing that ever has.

Life in the twentieth century is like a parachute jump: you have to get it right the first time.

It is only when we realize that life is taking us nowhere that it begins to have meaning.

The first thing I remember about the world:is that I was a stranger in it. This feeling, which is at once the glory and desolation of homo sapiens, provides th…

There will be ups and there will be downs, there will be times when things make sense, there will be times when they won't, but you'll always be on an adventur…