I hadn't traveled with the intention of learning about anything except myself. And the real point of all this travel was not what I had come to believe or disbelieve about the wider world, but what I had learned about myself.

All human behavior has a reason. All behavior is solving a problem.

Without question, the notion of the doctor as a legitimate fee-for-service entrepreneur, making his fortune from misfortunes of his patients, is old-fashioned, distasteful, and doomed.

We all live every day in virtual environments, defined by our ideas.

Science is as corruptible a human activity as any other.

Cure the symptoms, cure the disease.

Grant knew that people could not imagine geological time. Human life was lived on another scale of time entirely. An apple turned brown in a few minutes. Silverware turned black in a few days. A compost heap decayed in a season. A child grew up in a decade. None of these everyday human experiences prepared people to be able to imagine the meaning of eighty million years - the length of time that had passed since this little animal had died.