"The right phrase" How can we know that the Idea itself has any real existence apart from the Energy? Very strangely; by the fact that the Energy itself is conscious of referring all its acts to an existing and complete whole. Quite simply, every choice of an episode, or a phrase, or a word is made to conform to a pattern of the entire book, which is revealed by that choice as already existing. This truth, which is difficult to convey in explanation, is quite clear and obvious in experience. It manifests itself plainly enough when the writer says or thinks: “That is, or is not, the right phrase”—meaning that it is a phrase which does or does not correspond to the reality of the Idea. Dorothy Sayers, The Mind of the Maker wholeness
The minimum condition When a device is so designed that its component parts are only just strong enough to get the intended result without danger of failure, we may say it is in its minimum condition. I suspect that the functionalists sometimes meant by functional design simply design aimed at the minimum condition for a device. In that case 'form should follow function' would mean that every system should be in its minimum condition, thus having certain limitations imposed on its form. David Pye, The Nature and Aesthetics of Design Form follows function functionconstraintsdesignminimalism