He seems to me to have had a right and true apprehension of the power of custom, who first invented the story of a country-woman who, having accustomed herself to play with and carry a young calf in her arms, and daily continuing to do so as it grew up, obtained this by custom, that, when grown to be a great ox, she was still able to bear it. For, in truth, custom is a violent and treacherous schoolmistress. She, by little and little, slily and unperceived, slips in the foot of her authority, but having by this gentle and humble beginning, with the benefit of time, fixed and established it, she then unmasks a furious and tyrannic countenance, against which we have no more the courage or the power so much as to lift up our eyes. We see her, at every turn, forcing and violating the rules of nature:
"Usus efficacissimus rerum omnium magister."
["Custom is the best master of all things."--Pliny, Nat. Hist.,xxvi. 2.]
I refer to her Plato's cave in his Republic, and the physicians, who so often submit the reasons of their art to her authority; as the story of that king, who by custom brought his stomach to that pass, as to live by poison, and the maid that Albertus reports to have lived upon spiders.
In that new world of the Indies, there were found great nations, and in very differing climates, who were of the same diet, made provision of them, and fed them for their tables; as also, they did grasshoppers, mice, lizards, and bats; and in a time of scarcity of such delicacies, a toad was sold for six crowns, all which they cook, and dish up with several sauces. There were also others found, to whom our diet, and the flesh we eat, were venomous and mortal:
"Consuetudinis magna vis est: pernoctant venatores in nive: in montibus uri se patiuntur: pugiles, caestibus contusi, ne ingemiscunt quidem."
["The power of custom is very great: huntsmen will lie out all night in the snow, or suffer themselves to be burned up by the sun on the mountains; boxers, hurt by the caestus, never utter a groan."--Cicero, Tusc., ii. 17]
These strange examples will not appear so strange if we consider what we have ordinary experience of, how much custom stupefies our senses. We need not go to what is reported of the people about the cataracts of the Nile; and what philosophers believe of the music of the spheres, that the bodies of those circles being solid and smooth, and coming to touch and rub upon one another, cannot fail of creating a marvellous harmony, the changes and cadences of which cause the revolutions and dances of the stars; but that the hearing sense of all creatures here below, being universally, like that of the Egyptians, deafened, and stupefied with the continual noise, cannot, how great soever, perceive it--[This passage is taken from Cicero, "Dream of Scipio"; see his De Republica, vi. II. The Egyptians were said to be stunned by the noise of the Cataracts.]--Smiths, millers, pewterers, forgemen, and armourers could never be able to live in the perpetual noise of their own trades, did it strike their ears with the same violence that it does ours.
My perfumed doublet gratifies my own scent at first; but after I have worn it three days together, 'tis only pleasing to the bystanders. This is yet more strange, that custom, notwithstanding long intermissions and intervals, should yet have the power to unite and establish the effect of its impressions upon our senses, as is manifest in such as live near unto steeples and the frequent noise of the bells. I myself lie at home in a tower, where every morning and evening a very great bell rings out the Ave Maria: the noise shakes my very tower, and at first seemed insupportable to me; but I am so used to it, that I hear it without any manner of offence, and often without awaking at it.
Plato --[Diogenes Laertius, iii. 38. But he whom Plato censured was not a boy playing at nuts, but a man throwing dice.]-- reprehending a boy for playing at nuts, "Thou reprovest me," says the boy, "for a very little thing." "Custom," replied Plato, " is no little thing." I find that our greatest vices derive their first propensity from our most tender infancy, and that our principal education depends upon the nurse.
Mothers are mightily pleased to see a child writhe off the neck of a chicken, or to please itself with hurting a dog or a cat; and such wise fathers there are in the world, who look upon it as a notable mark of a martial spirit, when they hear a son miscall, or see him domineer over a poor peasant, or a lackey, that dares not reply, nor turn again; and a great sign of wit, when they see him cheat and overreach his playfellow by some malicious treachery and deceit. Yet these are the true seeds and roots of cruelty, tyranny, and treason; they bud and put out there, and afterwards shoot up vigorously, and grow to prodigious bulk, cultivated by custom. And it is a very dangerous mistake to excuse these vile inclinations upon the tenderness of their age, and the triviality of the subject: first, it is nature that speaks, whose declaration is then more sincere, and inward thoughts more undisguised, as it is more weak and young; secondly, the deformity of cozenage does not consist nor depend upon the difference betwixt crowns and pins; but I rather hold it more just to conclude thus: why should he not cozen in crowns since he does it in pins, than as they do, who say they only play for pins, they would not do it if it were for money? Children should carefully be instructed to abhor vices for their own contexture; and the natural deformity of those vices ought so to be represented to them, that they may not only avoid them in their actions, but especially so to abominate them in their hearts, that the very thought should be hateful to them, with what mask soever they may be disguised.