Life, as it occurs in buildings or in works of art, can be measured, but only by a method that relies on the degree of development or enlightenment of the observer.

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• We see then that life, as it occurs in buildings or in works of art, can be measured. But it can only be measured, or estimated, in a way which relies on the degree of development, or enlightenment, of the observer.quote0.964
  A key methodological statement encapsulating the chapter's conclusion.
• Value in architecture can be objective and real, not merely subjective; the degree of life in buildings is a fact that can be observed.claim0.843
  A direct challenge to the second and third tacit assumptions, fundamental to Alexander's view of building.
• It is, ultimately, the process, not the design, which gives life to a building.claim0.835
  Emphasizes process over blueprint.
• The degree of life is not merely a distinction between beautiful and ugly things but is detectable in every corner of the world.claim0.832
  Broadens the scope of life from aesthetics to a fundamental property.
• If the conception of life is completely general (degree of life in everything), it will be much easier to design buildings, towns, and regions that are alive.hypothesis0.832
  Pragmatic motivation for the entire book: a broader definition enables effective creation of life.
• We can best assess function by assessing the degree of life in various centers.claim0.828
  Practical prescription for design: evaluate life instead of checking functional lists.
• If a building is made by a process that allows fine adaptation through feedback, it will have life; if built from fixed drawings, it will not.hypothesis0.828
  Predictive conditional summarizing the chapter's argument.
• the degree of life of different things and places and events is objective - not solely in the individualquote0.823
  Load-bearing assertion of objectivity, summarizing the chapter's thesis.