I am truly a "lone traveler" and have never belonged to my country, my home, my friends, or even my immediate family, with my whole heart.

Gravity is a response to geometry.

Relativity teaches us the connection between the different descriptions of one and the same reality.

Our defense is not in our armaments, nor in science, nor in going underground. Our defense is in law and order.

I think we have to safeguard ourselves against people who are a menace to others, quite apart from what may have motivated their deeds.

Imagination rules the earth

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.