Plato was a pupil and friend of the greek philosopher Socrates.

Do we learn with one internal faculty, and become angry with another, and with a third feel desire for all the pleasures connected with eating and drinking, and the propagation of the species; or upon every impulse to action, do we perform these several actions with the whole soul.

Socrates à la Plato's Republic : Book 4

(from the Great Faiths, Plato, Socrates, Pythagoras, Shakespeare and !!!),
which are available on this site that give convincing support to such a "Tripartite" view of Human Nature!!!

For I presume the state has not received them from any other source.

The nature vs nurture debate and our path-breaking discovery of a consensus which suggests that:-

Man is explicable by nothing less than all his history.

Nature is all that a man brings with himself into the world; nurture is every influence that affects him after his birth."

Whilst Galton was specifically giving consideration to scientific genius, and concluded that it was to largely down to nature and was heritable, since the days of Descates, Hobbes, and Locke, the empirical" nuture " approach has possibly tended to prevail in terms of the wider argument about how people relate to the world - but the debate is far from being settled.

All the facts of history pre-exist as laws.

To this I answer, in one word, from EXPERIENCE.

John Locke : Essay Concerning Human Understanding : Hernnstein & Murray, 1994, p.311

In his work English Men of Science: Their Nature and Nurture, which discussed the influence of genetics and environment on a person's developmentand which was originally published in 1874,Francis Galton, a second or half-cousin to Charles Darwin stated: "[Nature and nurture are] a convenient jingle of words, for it separates under two distinct heads the innumerable elements of which personality is composed.

This view suggests that "Non-Doctrinaire" Societies often have a Tripartite character.

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In the 17th century theFrench philosopher René Descartes set out views which heldthat we all, as individual Human Beings, possess certain in-born ideas that underpinour approach to the world.
The British philosophers ThomasHobbes and John Locke, on the other hand, emphasised the role of experience as fully contributingto behavioral development.

Oct 21, 2014 · Hey everyone

A consensus that can be thought of as tending to suggest that, if the Human Mind or Psyche is originally a 'blank slate', it is nevertheless, in the majority of individual cases, extensively prepared to be foundational to the development and emergence of richly "Human" lives.

A manis a bundle of relations, a knot of roots, whose flower andfruitage is the world.

Nature vs. Nurture Debate: 50-Year Twin Study Proves …

It would be ridiculous to imagine that the presence of the spirited element in cities is not to be traced to individuals, wherever this character is imputed to the people, as it is to the natives of Thrace, and Scythia, and generally speaking, of the northern countries; or the love of knowledge, which would be chiefly attributed to our own country; or the love of riches, which people would especially connect with the Phoenicians and the Egyptians.
This then is a fact so far, and one which it is not difficult to apprehend.
No, it is not.
But here begins a difficulty.

M1 D1- Nature-nurture debate | Nicki

Amongst the many works attributed to Plato's authorship is his "The Republic" wherein is set out a series of discourses that allegedly took place between Socrates and a number of other persons who variously arrived and departed as the discussions continued.
It is in this record, made by Plato, of "Socrates?" philosophising that most intriguing themes are developed in relation to the affairs of the Ancient World during the Golden Age of Classical Greece:-

The Nature versus Nurture Debate | New Learning and …

Locke set out the case that the human mind at birth isa complete, but receptive, blank slate ( scraped tablet or tabula rasa ) upon which experience imprintsknowledge.