Science shows us what exists but not what to do about it.

Theoretical and experimental physicists are now studying nothing at all-the vacuum. But that nothingness contains all of being.

The capacity to tolerate complexity and welcome contradiction, not the need for simplicity and certainty, is the attribute of an explorer. Centuries ago, when some people suspended their search for absolute truth and began instead to ask how things worked, modern science was born. Curiously, it was by abandoning the search for absolute truth that science began to make progress, opening the material universe to human exploration.

Our capacity for fulfillment can come only through faith and feelings. But our capacity for survival must come from reason and knowledge.

Science has explored the microcosmos and the macrocosmos; we have a good sense of the lay of the land. The great unexplored frontier is complexity.

The great unexplored frontier is complexity ... I am convinced that the nations and people that master the new science of Complexity will become the economic, cultural, and political superpowers of the next century.

What is the universe? Is it a great 3D movie in which we are the unwilling actors? Is it a cosmic joke, a giant computer, a work of art by a Supreme Being or simply an experiment? The problem in trying to understand the universe is that we have nothing to compare it to.