What is Man? Plato’s Theory of Human Forms. Greek Philosophers Plato and Aristotle – To understand Man and Human Nature, we must know the Human Form, its actions and behavior.

What is Man? The motivation to ask this question comes from a statement expressed in the Sanskrit language, ‘Sarvesham Svastir Bhavatu’, which seeks the well-being of all humans, of all races, of all cultures, of all religions, and of all nations.


Our efforts to support the well-being of Man would be affected by our understanding the ‘real’ or ‘true’ nature of Man. Aristotle describes corporeal substances are composite of two principles,1. Form and 2. Matter. It is important to seek a proper understanding of Human Form and to know the truth about Human Nature by describing the Form. Being born relates Man to the Subjective Reality of his physical existence and Human Nature is related to the fact of Man’s existence in the physical world and universe. If the Objective Reality of Man is non-material or immaterial, we still need to know as to what exists in the world, and as to how it exists.


Greek philosopher Plato ( 427 B.C. to 347 B.C. ) describes Human Nature by his Theory of Forms. He describes four aspects or dimensions of Man; 1. The Logical Form, 2. The Epistemological Form, 3. The Moral Form, and 4. The Metaphysical Form.

I.The Logical Form: It describes the Physical Being, the Physical Form, and its Identity. Each human being has characteristic physical features using which he can be identified as a member of the genus Homo and he has very specific features that establish his identity that is shared by all the members of a species known as Homo sapiens sapiens. Members of this species could be further identified as Specific Individuals using the present Identification Technology.

This Specific Individual will not exist with the same identifying features during the entire duration of his physical existence. The Logical Form of Man is impermanent and is subject to constant change and eventual death. However, the existence of this Physical Form is important to support the existence of Man and to know his Human Nature. Existence precedes Human Nature or Essence. The Essence ( or, Who You Are ) is defined and preceded by Existence ( or, What You Do).

Man belongs to a Social Group, and always exists as an Individual with Individuality while his Physical Form changes and passes through various stages such as infancy, boyhood, teenage, adult and old age. The Logical Form is subject to change, decay, and death. Hence, the reality of this Form is often doubted. Plato has not known Man as a multicellular organism and his description of the Logical Form is not based upon the study of Human Anatomy and Human Physiology. 

II.The Epistemological Form: The term Epistemology deals with the Theory of Knowledge. It describes the possible kinds of Knowledge and the degrees of certainty for each kind of Knowledge. Plato describes the kind of Knowledge that Man can acquire through Education, a process of Learning from Sensory Experience, and teaching imparted by others. Plato expects to obtain full Knowledge of Human Forms through proper Education. In Plato’s view, such Self-Knowledge is important to know the Metaphysical Form of Man. Self-Knowledge leads to an understanding of Man’s true or real nature. Perception of impermanent, material, perishable Human Body is described by Plato as opinion or belief and he considers that such perception is not true Knowledge of Human Form.

Plato has not given attention to Knowledge that is Innate or that is not Acquired by the Learning Process. To perform Living Functions in support of existence, Man uses biological information that is Inherited and not Knowledge that has to be Acquired through Learning.

III.The Moral Form: It describes qualities such as Courage and Justice, the observable aspects of Human Nature described from Human Action and Human Behavior.

IV.The Metaphysical Form: Plato claims that the Metaphysical Form is not perceivable by any of the senses. The Metaphysical Form is the Real Form of Man as compared to the Logical Form which is considered to be unreal. The Metaphysical Form is not present in Space or Time, as it is beyond the World of changeable and perishable things. It belongs to the Realm of Unchanging, Eternal Forms. This Form being True can be fully known through Intuitive Knowledge.

Plato’s Theory of Body – Soul Dualism:

Plato divides Man into two categories; 1. Body – a material entity, and 2. Mind or Soul – a non-material or immaterial entity which can exist apart from the Body. Plato maintains that the Mind or Soul is indestructible, it existed eternally before Birth and will exist eternally after Death.

Plato further describes three parts of Soul as 1. Appetite – the seat of desires and passion such as hunger, thirst, and sexual desire, 2. Reason – the seat of discernment that chooses right from wrong and makes distinctions between good and evil, and 3. Spirit – the seat of self-assertion, self-interest, anger, indignation, and self-pride. Plato considers that the well-being of Man depends upon harmonious interactions of three aspects of the Soul. Plato thinks that such harmonious interactions would only be possible when Reason controls both Spirit and Appetite. To strike this balance and to maintain harmony, Man has to obtain Knowledge of Eternal, Unchanging Metaphysical Form.

Plato thinks that Justice is revealed as a Principle of each thing performing the function most appropriate to its nature, a Principle of the proper adjudication of Activity and Being. The Principle of Justice is revealed or discovered in the Individual Human Soul when each part of the Soul performs its proper and appropriate function. Plato believes that Human Soul rules the Human Body. The Rule of Reason is required to combine the virtue of Temperance with Self-Mastery. Harmony results when all elements agree as to which should do what.

The Six Dimensions of Man:

I describe Six Forms of man and each Form can be identified by its own Action/Behavior;1. The Physical Form, described by Human Anatomy and Human Physiology, 2. The Mental Form, described by Sciences such as Psychology and Psychiatry, the Form associated with Thinking, Imagination, Intellect, Memory, Moods, Feelings, and Self-Pride, 3. The Social Form described by Social Sciences, the social aspects of Man, his activities, and the structure and organization of all human institutions, 4. The Moral Form described by Man’s power of Discernment or Conscience to make moral and ethical choices, 5. The Spiritual Form, the aspect that formulates harmonious interactions between cells, tissues, organs, and the organ systems of Human Body whose individual functions generate the Singular Effect known as Man, and 6. The Creative Form described by Man’s Individuality that compels Man to always exist as Specific Individual, Original, Unique, Distinctive, and One of his own Kind. Man’s existence would be at risk if any of these Six Dimensions is adversely impacted. Unless we seek clear, visual images of Human Form in all its Dimensions, we will fail to understand Man and his Purpose in Life.

Rudranarasimham Rebbapragada


Published by Bhavanajagat

Whole Man - Whole Theory: "I am Consciousness, Therefore I am" is my proposition to examine the reality of Man and the World in which he exists.

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