Given the millions of billions of Earth-like planets, life elsewhere in the Universe without a doubt, does exist. In the vastness of the Universe we are not alone.

A hundred times every day I remind myself that my inner and outer life are based on the labors of others.

Logic will get you from A to B. Imagination will take you everywhere.

Our world faces a crisis as yet unperceived by those possessing power to make great decisions for good or evil. The unleashed power of the atom has changed everything save our modes of thinking and we thus drift toward unparalleled catastrophe.

It is my conviction that killing under the cloak of war is nothing but an act of murder.

Have the courage to take your own thoughts seriously, for they will shape you.

A human being is part of a whole called by us the universe.