To write and speak correctly is certainly necessary; but it is not sufficient. A derivation correctly presented in the book or on the blackboard may be inaccessible and uninstructive, if the purpose of the successive steps is incomprehensible, if the reader or listener cannot understand how it was humanly possible to find such an argument....
Art imitates nature not in its effects as such, but in its causes, in its ‘manner,’ in its process, which are nothing but a participation in and a derivation of actual objects, of the Art of God himself.Paul Claudel
Courage is of the heart by derivation, And great it is. But fear is of the soul.robert frost
Independent derivation meshed beautifully with the triumph, from the 1930's on, of a strict version of Darwinism based on the near ubiquity of adaptive design built by natural selection... Arthropods and vertebrates do share several features of functional design. But those similarities only reflect the power of natural selection to craft optimal structures independently in a world of limited biomechanical solutions to common functional problems - an evolutionary phenomenon called convergence .stephen jay gould
Bhopal is known as the “city of lakes”; its name is a derivation of Bhoj Tal (“Bhoj’s Lake”), a lake constructed by Bhoj, a Hindu raja , in the 11th century. Today, that lake is the Upper Bhopal Lake (Bada Talab), which is connected to the Lower Bhopal Lake (Chhota Talab) by an aqueduct. The lakes supply drinking water and are used for recreation.
[General System Theory]... is a logico-mathematical field, the subject matter of which is the formulation and derivation of those principles which hold for systems in general.
Est (Erhard Seminars Training) has been a singularly successful synthetic derivation, which has itself gone on to generate new movements, transmitting aspects of Scientology thought or practice far from the domain of L. Ron Hubbard.
Science is turning into a monastery for the Order of Capitulant Friars. Logical calculus is supposed to supersede man as moralist. We submit to the blackmail of the 'superior knowledge' that has the temerity to assert that nuclear war can be, by derivation, a good thing, because this follows from simple arithmetic.stanisław lem
The rule is derived inductively from experience , therefore does not have any inner necessity, is always valid only for special cases and can anytime be refuted by opposite facts . On the contrary, the law is a logical relation between conceptual constructions; it is therefore deductible from upper [übergeordnete] laws and enables the derivation of lower laws; it has as such a logical necessity in concordance with its upper premises; it is not a mere statement of probability, but has a compelling, apodictic logical value once its premises are accepted