History is an accumulation of error.

The capacity for hope is the most significant fact of life. It provides human beings with a sense of destination and the energy to get started.

Although a man may have no jurisdiction over the fact of his existence, he can hold supreme command over the meaning of existence for him.

The growth of the human mind is still high adventure, in many ways the highest adventure on earth.

All men - whether they go by the name of Americans or Russians or Chinese or British or Malayans or Indians or Africans - have obligations to one another that transcend their obligations to their sovereign societies.

The eternal quest of the individual human being is to shatter his loneliness.

Where is the indignation about the fact that the US and USSR have thirty thousand pounds of destructive force for every human being in the world?