“Imagine a society’s discovering a vaccine against a deadly disease that has been ravaging its people and continues to ravage people in neighboring societies, where the cause of the disease is incorrectly attributed to improper diet. What would be the judgment on such a society if it withheld its vaccine on the grounds that it would be ethnocentric to try to instruct members of another culture that their medical ideas are incorrect, and to induce them to adopt the effective treatment? If one accepts that one has the good fortune to be in possession of the true religion and thereby has access to the most valuable possible rewards, is one not similarly obligated to spread this blessing to those less fortunate?”

“Except for the people who were there that one day they discovered the polio vaccine, being part of history is rarely a good idea. History is one war after another with a bunch of murders and natural disasters in between.”

“So it's an absolute lie that has killed thousands of kids. Because the mothers who heard that lie, many of them didn't have their kids take either pertussis or measles vaccine, and their children are dead today. And so the people who go and engage in those anti-vaccine efforts -- you know, they, they kill children. It's a very sad thing, because these vaccines are important.”

“This new war, like the previous one, would be a test of the power of machines against people and places; whatever its causes and justifications, it would make the world worse. This was true of that new war, and it has been true of every new war since...I knew too that this new war was not even new but was only the old one come again. And what caused it? It was caused, I thought, by people failing to love one another, failing to love their enemies.”

“The earth has a skin and that skin has diseases; one of its diseases is called man.”

“The vulgar modern argument used against religion, and lately against common decency, would be absolutely fatal to any idea of liberty. It is perpetually said that because there are a hundred religions claiming to be true, it is therefore impossible that one of them should really be true. The argument would appear on the face of it to be illogical, if anyone nowadays troubled about logic. It would be as reasonable to say that because some people thought the earth was flat, and others (rather less incorrectly) imagined it was round, and because anybody is free to say that it is triangular or hexagonal, or a rhomboid, therefore it has no shape at all; or its shape can never be discovered; and, anyhow, modern science must be wrong in saying it is an oblate spheroid. The world must be some shape, and it must be that shape and no other; and it is not self-evident that nobody can possibly hit on the right one. What so obviously applies to the material shape of the world equally applies to the moral shape of the universe. The man who describes it may not be right, but it is no argument against his rightness that a number of other people must be wrong.”