Tell me why the stars do shine, Tell me why the ivy twines, Tell me what makes skies so blue, And I'll tell you why I love you. Nuclear fusion makes stars to shine, Tropisms make the ivy twine, Raleigh scattering make skies so blue, Testicular hormones are why I love you.

I would argue that a truly developed country would be beyond Presidents and Kings. In a world with some semblance of equality, each liberal-minded woman, each gay person, and indeed almost every person could be their own President. In a world of equals, what real service does a ruler provide?

You see, proteins, as I probably needn't tell you, are immensely complicated groupings of amino acids and certain other specialized compounds, arranged in intricate three-dimensional patterns that are as unstable as sunbeams on a cloudy day. It is this instability that is life, since it is forever changing its position in an effort to maintain its identity--in the manner of a long rod balanced on an acrobat's nose.

We all know we fall. Newton's discovery was that the moon falls, too-and by the same rule that we do.

However, I continue to try and I continue, indefatigably, to reach out. There's no way I can single-handedly save the world or, perhaps, even make a perceptible difference - but how ashamed I would be to let a day pass without making one more effort.

Experimentation is the least arrogant method of gaining knowledge. The experimenter humbly asks a question of nature.

A robot must protect its own existence as long as such protection does not conflict with the First or Second Laws.