p. 9; Feuchtersleben's Medical Psychology, pp. 143–145; Œuvres de Fontenelle, Paris, 1766, vol. v. p. 110; Cullen's Works, Edinb. 1827, vol. i. pp. 214–221; Cabanis, Rapports du Physique et du Moral, pp. 76–83, 229–261, 520–533; Noble on the Brain, pp. 370–376; Combe's North America, vol. i. pp. 126–128. Latterly, attention has been paid to the chemistry of the blood as it varies in the various temperaments; and this seems a more satisfactory method than the old plan of merely describing the obvious symptoms of the temperament. Clark on Animal Physiology, in Fourth Report of the British Association, p. 126; Simon's Animal Chemistry, vol. i. p. 236; Wagner's Physiology, p. 262.
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We often hear of hereditary talents, hereditary vices, and hereditary virtues; but whoever will critically examine the evidence will find that we have no proof of their existence. The way in which they are commonly proved is in the highest degree illogical; the usual course being for writers to collect instances of some mental peculiarity found in a parent and in his child, and then to infer that the peculiarity was bequeathed. By this mode of reasoning we might demonstrate any proposition; since in all large fields of inquiry there are a sufficient number of empirical coincidences to make a plausible case in favour of whatever view a man chooses to advocate. But this is not the way in which truth is discovered; and we ought to inquire not only how many instances there are of hereditary talents, &c. but how many instances there are of such qualities not being hereditary. Until something of this sort is attempted, we can know nothing about the matter inductively: while, until physiology and chemistry are much more advanced, we can know nothing about it deductively.
These considerations ought to prevent us from receiving statements (Taylor's Medical Jurisprudence, pp. 644, 678, and many other books) which positively affirm the existence of hereditary madness and hereditary suicide; and the same remark applies to hereditary disease (on which see some admirable observations in Phillips on Scrofula, pp. 101–120, London, 1846); and with still greater force does it apply to hereditary vices and hereditary virtues; inasmuch as ethical phenomena have not been registered as carefully as physiological ones, and therefore our conclusions respecting them are even more precarious.
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To what has been already stated, I will add the opinions of two of the most profound among modern thinkers. ‘Men, I think, have been much the same for natural endowments in all times.’ Conduct of the Understanding, in Locke's Works, vol. ii. p. 361. ‘Les dispositions primitives agissent également chez les peuples barbares et chez les peuples policés; ils sont vraisemblablement les mêmes dans tous les lieux et dans tous les tems… Plus il y aura d'hommes, et plus vous aurez de grands hommes ou d'hommes propres à devenir grands.’ Progrès de l'Esprit Humain, in Œuvres de Turgot, vol. ii. p. 264. The remarks of Dr. Brown (Lectures on the Mind, p. 57), if I rightly understand his rhetorical language, apply not to natural capacity, but to that which is acquired: see the end of his ninth Lecture.
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That the system of morals propounded in the New Testament contained no maxim which had not been previously enunciated, and that some of the most beautiful passages in the Apostolic writings are quotations from pagan authors, is well known to every scholar; and so far from supplying, as some suppose, an objection against Christianity, it is a strong recommendation of it, as indicating the intimate relation between the doctrines of Christ and the moral sympathies of mankind in different ages. But to assert that Christianity communicated to man moral truths previously unknown, argues, on the part of the assertor, either gross ignorance or else wilful fraud. For evidence of the knowledge of moral truths possessed by barbarous nations, independently of Christianity, and for the most part previous to its promulgation, compare Mackay's Religious Development, vol. ii. pp. 376–380; Mure's Hist. of Greek Literature, vol. ii. p. 398, vol. iii. p. 380; Prescott's History of Mexico, vol. i. p. 31; Elphinstone's History of India, p. 47; Works of Sir W. Jones, vol. i. pp. 87, 168, vol. iii. pp. 105, 114; Mill's History of India, vol. i. p. 419; Bohlen, das alte Indien, vol. i. pp. 364–366; Beausobre, Histoire de Manichée, vol. i. pp. 318, 319; Coleman's Mythology of the Hindus, p. 193; Transac. of Soc. of Bombay, vol. iii. p. 198; Transac. of Asiatic Society, vol. i. p. 5, vol. iii. pp. 283, 284; Asiatic Researches, vol. vi. p. 271, vol. vii. p. 40, vol. xvi. pp. 130, 277, vol. xx. pp. 460, 461; The Dabistan, vol. i. pp. 328, 338; Catlin's North-American Indians, vol. ii. p. 243; Syme's Embassy to Ava, vol. ii. p. 389; Davis's Chinese, vol. i. p. 196, vol. ii. pp. 136, 233; Journal Asiatique, I. série, vol. iv. p. 77, Paris, 1824.
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Sir James Mackintosh was so struck by the stationary character of moral principles, that he denies the possibility of their advance, and boldly affirms that no further discoveries can be made in morals: ‘Morality admits no discoveries… More than three thousand years have elapsed since the composition of the Pentateuch; and let any man, if he is able, tell me in what important respect the rule of life has varied since that distant period. Let the Institutes of Menu be explored with the same view; we shall arrive at the same conclusion. Let the books of false religion be opened; it will be found that their moral system is, in all its grand features, the same… The fact is evident that no improvements have been made in practical morality… The facts which lead to the formation of moral rules are as accessible, and must be as obvious, to the simplest barbarian as to the most enlightened philosopher… The case of the physical and speculative sciences is directly opposite. There the facts are remote and scarcely accessible… From the countless variety of the facts with which they are conversant, it is impossible to prescribe any bounds to their future improvement. It is otherwise with morals. They have hitherto been stationary; and, in my opinion, they are likely for ever to continue so.’ Life of Mackintosh, edited by his Son, London, 1835, vol. i. pp. 119–122. Condorcet (Vie de Turgot, p. 180) says, ‘La morale de toutes les nations a été la même;’ and Kant (Logik, in Kant's Werke, vol. i. p. 356), ‘In der Moral-philosophie sind wir nicht weiter gekommen, als die Alten.’
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One part of the argument is well stated by Cuvier, who says, ‘Le bien que l'on fait aux hommes, quelque grand qu'il soit, est toujours passager; les vérités qu'on leur laisse sont éternelles.’ Cuvier, Eloges Historiques, vol. ii. p. 304.
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‘The first year of Commodus must be the epocha of the toleration. From all these authorities, it appears beyond exception, that Commodus put a stop to the persecution in the first year of his reign… Not one writer, either heathen or Christian, makes Commodus a persecutor.’ Letters concerning the Thundering Legion, in Moyle's Works, vol. ii. p. 266, London, 1726. ‘Heliogabalus also, though in other respects the most infamous of all princes, and perhaps the most odious of all mortals, showed no marks of bitterness or aversion to the disciples of Jesus.’ Mosheim's Eccl. History, vol. i. p. 66: see also Milman's Hist. of Christianity, London, 1840, vol. ii. p. 225.
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Dr. Milman (History of Christianity, 1840, vol. ii. p. 159) says, ‘A blameless disciple in the severest school of philosophic morality, the austerity of Marcus rivalled that of the Christians in its contempt of the follies and diversions of life; yet his native kindliness of disposition was not hardened or embittered by the severity or the pride of his philosophy. With Aurelius, nevertheless, Christianity found not only a fair and high-minded competitor for the command of the human mind; not only a rival in the exaltation of the soul of man to higher views and more dignified motives; but a violent and intolerant persecutor.’ M. Guizot compares him with Louis IX. of France; and certainly there was in both an evident connexion between sincerity and persecution: ‘Marc Auréle et saint Louis sont peut-être les deux seuls princes qui, en toute occasion, aient fait de
