“Because we bump into reinforcing loops so often, it is handy to know this shortcut: The time it takes for an exponentially growing stock to double in size, the doubling time, equals approximately 7...”

“We can't impose our will on a system. We can listen to what the system tells us, and discover how its properties and our values can work together to bring forth something much better than could eve...”

“There comes a time in your life when you have to choose to turn the page, write another book or simply close it.”

“I live alone," he said simply. "I live in the open. I hear the waves at night and see the black patterns of the pine boughs against the sky. With sound and silence and color and solitude, of course...”

“It is difficult to undo our own damage, and to recall to our presence that which we have asked to leave. It is hard to desecrate a grove and change your mind. The very holy mountains are keeping mu...”

“Knowledge, like air, is vital to life. Like air, no one should be denied it.”

“Science is organized knowledge. Wisdom is organized life.”

“I definitely learned a lesson this time. I know that I can be broken. I am not as tough as I thought. I see it now. At this point, it's the only thing good that came out of all of this. I know myse...”

“Sometimes it's not enough to know what things mean, sometimes you have to know what things don't mean.”

“Dont cry and dont rage. Understand.”

“The only way to heal yourself was to understand. Understand the love or the hate or the cowardice, or the impulsiveness, the lack of will of the one who hurt you--the circumstances that twisted the...”