After years of work in both areas of study, I concluded that the social sciences were different, in many important ways, from the natural sciences, but that the same scientific methods were applicable in both areas, and, indeed, that no very useful work could be done in either area except by scientific methods.

Each individual in a society is a nexus where innumerable relationships of this character intersect.

Even today few scientists and perhaps even fewer nonscientists realize that science is a method and nothing else.

The failure of Christianity in the areas west from Sicily was even greater, and was increased by the spread of Arab outlooks and influence to that area, and especially to Spain.

The difference between a stable society and an unstable one is that the restraints in an unstable one are external. In a stable society government ultimately becomes unnecessary; the restraints on people's actions are internal, they're self-disciplined.

This persistence as private firms continued because it ensured the maximum of anonymity and secrecy to persons of tremendous public power who dreaded public knowledge of their activities as an evil almost as great as inflation.

No scientist ever believes that he has the final answer or the ultimate truth on anything.