182 Quotes by Lewis Thomas

  • Author Lewis Thomas
  • Quote

    Cats are a standing rebuke to behavioral scientists wanting to know how the minds of animals work. The mind of a cat is an unscrutable mystery.

  • Tags
  • Share

  • Author Lewis Thomas
  • Quote

    We are, perhaps, uniquely among the earth's creatures, the worrying animal. We worry away our lives, fearing the future, discontent with the present, unable to take in the idea of dying, unable to sit still.

  • Tags
  • Share

  • Author Lewis Thomas
  • Quote

    I do not understand modern physics at all, but my colleagues who know a lot about the physics of very small things, like the particles in atoms, or very large things, like the universe, seem to be running into one queerness after another, from puzzle to puzzle.

  • Tags
  • Share

  • Author Lewis Thomas
  • Quote

    The future is too interesting and dangerous to be entrusted to any predictable, reliable agency. We need all the fallibility we can get. Most of all, we need to preserve the absolute unpredictability and total improbability of our connected minds. That way we can keep open all the options, as we have in the past.

  • Tags
  • Share


  • Author Lewis Thomas
  • Quote

    Of all celestial bodies within reach or view, as far as we can see, out to the edge, the most wonderful and marvellous and mysterious is turning out to be our own planet earth. There is nothing to match it anywhere, not yet anyway.

  • Tags
  • Share

  • Author Lewis Thomas
  • Quote

    We still think of human disease as the work of an organized, modernized kind of demonology, in which the bacteria are the most visible and centrally placed of our adversaries. We assume that they must somehow relish what they do.

  • Tags
  • Share

  • Author Lewis Thomas
  • Quote

    Our behavior toward each other is the strangest, most unpredictable, and most unaccountable of all the phenomena with which we are obliged to live. In all of nature, there is nothing so threatening to humanity as humanity itself.

  • Tags
  • Share

  • Author Lewis Thomas
  • Quote

    Montaigne simply turns his mind loose and writes whatever he feels like writing. Mostly, he wants to say that reason is not a special, unique gift of human beings, marking us off from the rest of nature.

  • Tags
  • Share