If the views I have expressed be right, we can think of our civilization evolving with the growth of knowledge from small wandering tribes to large settled law.

We are now physically, politically, and economically one world and nations so interdependent that the absolute national sovereignty of nations is no longer possible.

Knowledge acquired in biological research is seldom directly applicable to human beings ... The results of scientific research, obtained under these conditions, cannot be applied directly to human beings who vary widely in their hereditary make-up, in their environment, and in their past health record.

If the views I have expressed be right, we can think of our civilization evolving with the growth of knowledge from small wandering tribes to large settled law.

Our civilization is now in the transition stage between the age of warring empires and a new age of world unity and peace.

When the Industrial Revolution of the nineteenth century brought a rapid increase in wealth, the demand of workers for a fair share of the wealth they were creating was conceded only after riots and strikes.

In recent times, European nations, with the use of gunpowder and other technical improvements in warfare, controlled practically the whole world. One, the British Empire, brought under one government a quarter of the earth and its inhabitants.