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Mathematics provides a framework for dealing precisely with notions of 'what is.' Computation provides a framework for dealing precisely with notions of 'how to' . ↗
I placed some of the DNA on the ends of my fingers and rubbed them together. The stuff was sticky. It began to dissolve on my skin. 'It's melting -- like cotton candy.' 'Sure. That's the sugar in the DNA,' Smith said. 'Would it taste sweet?' 'No. DNA is an acid, and it's got salts in it. Actually, I've never tasted it.' Later, I got some dried calf DNA. I placed a bit of the fluff on my tongue. It melted into a gluey ooze that stuck to the roof of my mouth in a blob. The blob felt slippery on my tongue, and the taste of pure DNA appeared. It had a soft taste, unsweet, rather bland, with a touch of acid and a hint of salt. Perhaps like the earth's primordial sea. It faded away. Page 67, in Richard Preston's biographical essay on Craig Venter, "The Genome Warrior" (originally published in The New Yorker in 2000). ↗
In the beginning, there was physics. "Physics" describes how matter, energy, space, and time behave and interact with one another. The interplay of these characters in our cosmic drama underlies all biological and chemical phenomena. Hence everything fundamental and familiar to us earthlings begins with, and rests upon, the laws of physics. When we apply these laws to astronomical settings, we deal with physics writ large, which we call astrophysics. ↗
The greatest and most powerful revolutions often start very quietly, hidden in the shadows. Remember that. ↗
You want a physicist to speak at your funeral. You want the physicist to talk to your grieving family about the conservation of energy, so they will understand that your energy has not died. You want the physicist to remind your sobbing mother about the first law of thermodynamics; that no energy gets created in the universe, and none is destroyed. You want your mother to know that all your energy, every vibration, every Btu of heat, every wave of every particle that was her beloved child remains with her in this world. You want the physicist to tell your weeping father that amid energies of the cosmos, you gave as good as you got. And at one point you'd hope that the physicist would step down from the pulpit and walk to your brokenhearted spouse there in the pew and tell him that all the photons that ever bounced off your face, all the particles whose paths were interrupted by your smile, by the touch of your hair, hundreds of trillions of particles, have raced off like children, their ways forever changed by you. And as your widow rocks in the arms of a loving family, may the physicist let her know that all the photons that bounced from you were gathered in the particle detectors that are her eyes, that those photons created within her constellations of electromagnetically charged neurons whose energy will go on forever. And the physicist will remind the congregation of how much of all our energy is given off as heat. There may be a few fanning themselves with their programs as he says it. And he will tell them that the warmth that flowed through you in life is still here, still part of all that we are, even as we who mourn continue the heat of our own lives. And you'll want the physicist to explain to those who loved you that they need not have faith; indeed, they should not have faith. Let them know that they can measure, that scientists have measured precisely the conservation of energy and found it accurate, verifiable and consistent across space and time. You can hope your family will examine the evidence and satisfy themselves that the science is sound and that they'll be comforted to know your energy's still around. According to the law of the conservation of energy, not a bit of you is gone; you're just less orderly. Amen. ↗
However modest one may be in one's demand for intellectual cleanliness, one cannot help feeling, when coming into contact with the New Testament, a kind of inexpressible discomfiture: for the unchecked impudence with which the least qualified want to raise their voice on the greatest problems, and even claim to be judges of things, surpasses all measure. The shameless levity with which the most intractable problems (life, world, God, purpose of life) are spoken of, as if they were not problems at all but simply things that these little bigots KNEW! ↗
The political trend is always to be observed, partly as a spectacle, partly for one’s own safety. The liberal is dissatisfied with regime; the anarch passes through their sequence – as inoffensively as possible – like a suite of rooms. This is the recipe for anyone who cares more about the substance of the world than its shadow – the philosopher, the artist, the believer. ↗
They had no conversation together, no intercourse but what the commonest civility required. Once so much to each other! Now nothing! There had been a time, when of all the large party now filling the drawing-room at Uppercross, they would have found it most difficult to cease to speak to one another. With the exception, perhaps, of Admiral and Mrs. Croft, who seemed particularly attached and happy, (Anne could allow no other exception even among the married couples) there could have been no two hearts so open, no tastes so simliar, no feelings so in unison, no countenances so beloved. Now they were as strangers; nay, worse than strangers, for they could never become aquainted. It was a perpetual estrangement. ↗
Constantine saw with his own eyes the trophy of a cross of light in the heavens, above the sun, and bearing this inscription: conquer by this. At the sight, he himself was struck with amazement and his whole army also. ↗
