Maxwell's Equations have had a greater impact on human history than any ten presidents.

Except for fools and madmen, everyone knows that nuclear war would he an unprecedented human catastrophe.

The truth may be puzzling. It may take some work to grapple with. It may be counterintuitive. It may contradict deeply held prejudices. It may not be consonant with what we desperately want to be true. But our preferences do not determine what's true.

.. Think of the rivers of blood spilled by all those generals and emperors so that in glory and in triumph they could become the 'Momentary' masters of a 'Fraction' of a 'Dot'

The dumbing down of America is evident in the slow decay of substantive content, a kind of celebration of ignorance.

Preserve and cherish the pale blue dot, the only home we've ever known.

Human beings grew up in forests; we have a natural affinity for them. How lovely a tree is, straining toward the sky.