Civilizations die from suicide, not by murder.

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.

Write regularly, day in and day out, at whatever times of day you find that you write best. Don't wait till you feel that you are in the mood. Write, whether you are feeling inclined to write or not.

Our western science is a child of moral virtues; and it must now become the father of further moral virtues if its extraordinary material triumphs in our time are not to bring human history to an abrupt, unpleasant and discreditable end.

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

Civilizations die from suicide, not by murder.

The immense cities lie basking on the beaches of the continent like whales that have taken to the land.