Civilization is a movement and not a condition, a voyage and not a harbor.

The only real struggle in the history of the world ... is between the vested interest and social justice.

The twentieth century will be chiefly remembered by future generations not as an era of political conflicts or technical inventions, but as an age in which human society dared to think of the welfare of the whole human race as a practical objective.

The penalty of affluence is that it cuts one off from the common lot, common experience, and common fellowship. In a sense it outlaws one automatically from one's birthright of membership in the great human family.

Apathy can be overcome by enthusiasm.

The last stage but one of every civilisation, is characterised by the forced political unification of its constituent parts, into a single greater whole.

It is a paradoxical but profoundly true and important principle of life that the most likely way to reach a goal is to be aiming not at that goal itself but at some more ambitious goal beyond it.