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This term [entity] may be used in several senses. If you speak in the primary sense, “entity” has to be defined ostensively—that is to say, by pointing. I can, however, give you three descriptive characteristics essential to the primary, philosophic use of the term, according to Objectivism. This is not a definition, because I’d have to rely ultimately on pointing to make these points clear, but it will give you certain criteria for the application of the term in the primary sense . . . .

  1. An entity means a self-sufficient form of existence—as against a quality, an action, a relationship, etc., which are simply aspects of an entity that we separate out by specialized focus. An entity is a thing.

  2. An entity, in the primary sense, is a solid thing with a definite boundary—as against a fluid, such as air. In the literal sense, air is not an entity. There are contexts, such as when the wind moves as one mass, when you can call it that, by analogy, but in the primary sense, fluids are not entities.

  3. An entity is perceptual in scale, in size. In other words it is a “this” which you can point to and grasp by human perception. In an extended sense you can call molecules—or the universe as a whole—“entities,” because they are self-sufficient things. But in the primary sense when we say that entities are what is given in sense perception, we mean solid things which we can directly perceive.

Copyright © 1986 by Harry Binswanger. Introduction copyright © 1986 by Leonard Peikoff. All rights reserved. For information address New American Library.

Acknowledgments

Excerpts from The Ominous Parallels, by Leonard Peikoff. Copyright © 1982 by Leonard Peikoff. Reprinted with permission of Stein and Day Publishers. Excerpts from The Romantic Manifesto, by Ayn Rand. Copyright © 1971, by The Objectivist. Reprinted with permission of Harper & Row, Publishers, Inc. Excerpts from Atlas Shrugged, copyright © 1957 by Ayn Rand, The Fountainhead, copyright © 1943 by Ayn Rand, and For the New Intellectual, copyright © 1961 by Ayn Rand. Reprinted by permission of the Estate of Ayn Rand. Excerpts from Philosophy: Who Needs It, by Ayn Rand. Copyright © 1982 by Leonard Peikoff, Executor, Estate of Ayn Rand. Reprinted by permission of the Estate of Ayn Rand. Excerpts from “The Philosophy of Objectivism” lecture series. Copyright © 1976 by Leonard Peikoff. Reprinted by permission. Excerpts from Alvin Toffler’s interview with Ayn Rand, which first appeared in Playboy magazine. Copyright © 1964. Reprinted by permission of Alvin Toffler. All rights reserved including the right of reproduction in whole or in part in any form. Used by arrangement with Plume, a member of Penguin Group (USA), Inc.