“Doctors generally consider smallpox to be the worst human disease. It is thought to have killed more people than any other infectious pathogen, including the Black Death of the Middle Ages. Epidemi...”

“we could eradicate smallpox from nature, but we could not uproot the virus from the human heart”

“Redwood time moves at a more stately pace than human time. To us, when we look at a redwood tree, it seems to be motionless and still, and yet redwoods are constantly in motion, moving upward into ...”

“We're creating these massive urban areas in the Third World. It's like you take the entire population of California and put it in one city. Then you remove basic sanitation and medical services, an...”

“Experiments suggest that if one particle of Ebola enters a person's bloodstream, it can cause a fatal infection. This may explain why many of the medical workers who came down with Ebola couldn't r...”

“If a vaccine works, then the vaccinators might conceivably set up what's known as ring vaccinations around Ebola hot spots. In this technique, medical workers simply vaccinate everybody in a ring, ...”

“He liked the loneliness of inner space, the sense of being forgotten by the world.”

“The truth is, we value your company, for want of any other. We have been left so much to our own devicesafter a while one welcomes the uncertainty of being left to other people's.”

“The cold rationalism simply covers for raw, wounded emotion. The more driven people are by the mind, the more they feel and further encode their feelings. The thickness of the tarpaulin cover is as...”

“Anything we fully do is an alone journey.”