Our numbers expand, but Earth's natural systems do not.

One way or another, the choice will be made by our generation, but it will affect life on earth for all generations to come

Saving civilization is not a spectator sport.

No civilization has survived the ongoing destruction of its natural support systems. Nor will ours.

Today, more than ever, we need political leaders who can see the big picture, who understand the relationship between the economy and its environmental support systems.

The foundation is being laid for the emergence of both wind and solar cells as cornerstones of the new energy economy.

The throwaway economy that has been evolving over the last half-century is an aberration, now itself headed for the junk heap of history.

Population growth is exceeding farmers' ability to keep up...Our oldest enemy, hunger, is again at the door.

Humanity's greatest challenge may soon be just making it to the next harvest.

Socialism failed because it couldn't tell the economic truth. Capitalism may fail because it couldn't tell the ecological truth.

The biggest threat to global stability is the potential for food crises in poor countries to cause government collapse.

The essence of all things determines souls that are fit to send messages for their kinds.

It was as if she would never be whole until the secrets of the past were exposed.

Capitalism: Nothing so mean could be right. Greed is the ugliest of the capital sins.

Literary critics, like a herd of cows or a school of fish, always face in the same direction, obeying that love for unity that every critic requires.

I feel very sorry for people who are trapped in an abusive relationship and keep making excuses for their abuser.

One of the most important reasons for North Korea continuing its nuclear ambitions is to consolidate the power to stay within the Kim Jong Il family.

After the door of a woman's heart has once swung on its silent hinges, a man thinks he can prop it open with a brick and go away and leave it.

It's not a problem that we're sinners; it's a problem that we aren't ashamed of our sin and don't seek forgiveness.

The faster you can sample sound when you are digitizing it, the higher the frequency, the less phase ambiguity at the higher frequencies.

A poet or a comedian can say what's on the mind of people. They should be funny. They should make you laugh. It may be so truthful that it hurts, but it makes you laugh.