These rules for symmetry were established by Hermogenes, who was also the first to devise the principal of the pseudodipteral octastyle.
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Chapter III, Sec. 8Vitruvius
It must not be forgotten that the rules of Courts of equity are not, like the rules of the common law, supposed to have been established from time immemorial. It is perfectly well known that they have been established from time to time — altered, improved, and refined from time to time. In many cases we know the names of the Chancellors who invented them.
George Jessel
If they have entered into the spirit if these rules, and if the rules have made sufficient impression on them to become rooted and established in their minds, they will feel how much difference there is between what is said here and what a few logicians may perhaps have written by chance approximating to it in a few passages of their works.
Blaise Pascal
All that makes existence valuable to any one, depends on the enforcement of restraints upon the actions of other people. Some rules of conduct, therefore, must be imposed, by law in the first place, and by opinion on many things which are not fit subjects for the operation of law. What these rules should be, is the principal question in human affairs; but if we except a few of the most obvious cases, it is one of those which least progress has been made in resolving. No two ages, and scarcely any two countries, have decided it alike; and the decision of one age or country is a wonder to another.
John Stuart Mill
Only the bad artists of the nineteenth century were frightened by the invention of photography; the good ones all welcomed it and used it. Degas liked it not only because it provided an accurate record, but because the snapshot showed him a means of escape from the classical rules of design. Through it he learnt to make a composition without the use of formal symmetry.
Kenneth Clark
Mixture of assimilation to earlier schemas and adaptation to the actual conditions of the situation is what defines motor intelligence. But — and this is where rules come into existence — as soon as a balance is established between adaptation and assimilation, the course of conduct adopted becomes crystallized and ritualized. New schemas are even established which the child looks for and retains with care, as though they were obligatory or charged with efficacy.
Jean Piaget
Vitruvius
Vitter, David
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