It is, in my judgment, both curious and interesting to study the manner in which these two illustrious men — Plato and Aristotle — dealt with the problem of population. Grave as that problem is in all times, it was peculiarly grave among the small republics of antiquity. Neither of them were disposed to ignore or overlook it: nor to impute to other causes the consequences which it produces: nor to treat as indifferent the question, whether poor couples had a greater or less family, to share subsistence already scanty for themselves. Still less were these philosophers disposed to sanction the short-sighted policy of some Hellenic statesmen, who under a mistaken view of increasing the power of the state, proclaimed encouragement and premium simply to the multiplication of male births, without any regard to the comfort and means of families. Both Plato and Aristotle saw plainly, that a married couple, by multiplying their offspring, produced serious effects not merely upon their own happiness but upon that of others besides: up to a certain limit, for good — beyond that limit, for evil. Hence they laid it down, that procreation ought to be a rational and advised act, governed by a forecast of those consequences — not a casual and unforeseen result of present impulse. The same preponderance of reason over impulse as they prescribed in other cases, they endeavoured to enforce in this. They regarded it too, not simply as a branch of prudence, but as a branch of duty; a debt due by each citizen to others and to the commonwealth. It was the main purpose of their elaborate political schemes, to produce a steady habit and course of virtue in all the citizens: and they considered every one as greatly deficient in virtue, who refused to look forward to the consequences of his own procreative acts — thereby contributing to bring upon the state an aggravated measure of poverty, which was the sure parent of discord, sedition, and crime. That the rate of total increase should not be so great as to produce these last-mentioned effects — and that the limit of virtue and prudence should be made operative on all the separate families — was in their judgment one of the most important cares of the lawgiver.

We ought to disengage this general drift and purpose, common both to Plato and Aristotle, on the subject of population, from the various means — partly objectionable, partly impossible to be enforced — whereby they intended to carry the purpose into effect.

Training of the few select philosophers to act as chiefs.

I pass from Plato’s picture of the entire regiment of Guardians, under the regulations above described — to his description of the special training whereby the few most distinguished persons in the regiment (male or female, as the case may be) are to be improved, tested, and exalted to the capacity of philosophers: qualified to act as Rulers or Chiefs.[177] These are the two marked peculiarities of Plato’s Republic. The Guardians are admirable as instruments, but have no initiative of their own: we have now to find the chiefs from whom they will receive it. How are philosophers to be formed? None but a chosen Few have the precious gold born with them, empowering them to attain this elevation. To those Few, if properly trained, the privilege and right to exercise command belongs, by Nature. For the rest, obedience is the duty prescribed by Nature.[178]

[177] Plato, Republic, v. p. 473, vi. p. 503 B. τοὺς ἀκριβεστάτους φύλακας φιλοσόφους δεῖ καθιστάναι.

[178] Plato, Repub. v. p. 474 B. τοῖς μὲν προσήκει φύει, ἅπτεσθαί τε φιλοσοφίας, ἡγεμονεύειν τ’ ἐν πόλει· τοῖς δ’ ἄλλοις μήτε ἅπτεσθαι, ἀκολουθεῖν τε τῷ ἡγουμένῳ.

476 B: σπάνιοι ἂν εἶεν. Also vi. 503, vii. 535. They are to be ἐκ τῶν προκρίτων πρόκριτοι, vii. 537 D.

Comprehensive curriculum for aspirants to philosophy — consummation by means of Dialectic.

I have already given, in [Chap. XXXV.], a short summary of the peculiar scientific training which Sokrates prescribes for ripening these heroic aspirants into complete philosophers. They pass years of intellectual labour, all by their own spontaneous impulse, over and above the full training of Guardians. They study Arithmetic, Geometry, Stereometry, Astronomy, Acoustics, &c., until the age of thirty: they then continue in the exercise of Dialectic, with all the test of question and answer, for five years longer: after which they enter upon the duties of practice and administration, succeeding ultimately to the position of chiefs if found competent. It is assumed that this long course of study, consummated by Dialectic, has operated within them that great mental revolution which Plato calls, turning the eye from the shadows in the cave to the realities of clear daylight: that they will no longer be absorbed in the sensible world or in passing phenomena, but will become familiar with the unchangeable Ideas or Forms of the Intelligible world, knowable only by intellectual intuition. Reason has with them been exalted to its highest power: not only strengthening them to surmount all intellectual difficulties and to deal with the most complicated conjectures of practice — but also ennobling their dispositions, so as to overcome all the disturbing temptations and narrow misguiding prejudices inherent in the unregenerate man. Upon the perfection of character, emotional and intellectual, imparted to these few philosophers, depends the Platonic Commonwealth.

Valuable remarks on the effects of these preparatory studies.