The age of isolation is gone. And gone are the days in which barbed wire served as demarcation lines, separating and isolating countries from one another. No country can escape looking beyond its boundaries to find the source of the currents which influence how it can live with others.

Winning wars, after all, is the ultimate test not of the quality of single men but of their capacity to work together and accept common sacrifices.

Every smallest step of modern industry depends upon a cooperation whose maintenance and regulation is the very stuff of law.

One hand washes another.

Let everyone sweep in front of his own door, and the whole world will be clean.

We can play to each other's strengths.

By mutual confidence and mutual aid Great deeds are done, and great discoveries made.

Light is the task when many share the toil.

We are born for cooperation, as are the feet, the hands, the eyelids, and the upper and lower jaws.

Many hands make light work.