What will people of the future think of us? Will they say, as Roger Williams said of the Massachusetts Indians, that we were wolves with the minds of men? Will they think that we resigned our humanity? They will have the right.

This ability to incorporate the past gives the sharpest diagnostic tool, if one asks whether a body of knowledge is a science or not. Do present practitioners have to go back to an original work of the past? Or has it been incorporated? ... Science is cumulative, and embodies its past.

The main issue [of the Scientific Revolution] is that the people in the industrialised countries are getting richer, and those in the non-industrialised countries are at best standing still: so the gap between the industrialised countries and the rest is widening every day. On the world scale this is the gap between the rich and the poor.

I want a man who knows something about himself. And is appalled. And has to forgive himself to get along.

Two polar groups: at one pole we have the literary intellectuals, at the other scientists, and as the most representative, the physical scientists. Between the two a gulf of mutual incomprehension.

When you think of the long and gloomy history of man, you will find more hideous crimes have been committed in the name of obedience than have ever been committed in the name of rebellion.

I was moving among two groups... who had almost ceased to communicate at all, who in intellectual, moral, and psychological climate had so little in common that... one might have crossed the ocean.