Unfortunately, truth is neither a listable nor a decidable property; nor is the truth of a statement of arithmetic. The American logician John Myhill has used the term 'prospective' to characterize those attributes of the world that are neither listable nor decidable. They are properties that cannot be recognized by the application of some formula, made to conform to a rule, or generated by some computer program. They are characterized by incessant novelty that cannot be encompassed by any finite set of rules. 'Beauty', 'ugliness', 'truth', 'harmony', simplicity', and 'poetry' are names we give to some of the attributes of this sort. There is no way of listing all examples of beauty or ugliness, nor any procedure for saying whether or not something possesses either of those attributes, without redefining them in some more restrictive fashion that kills their prospective character.
John D. BarrowRelated topics
arithmetic beauty character computer fashion harmony john listing logician nor procedure property prospective restrictive rule saying set something sort truth ugliness way names RulesRelated quotes
The effort necessary to remain uncorrupted in an environment where fear is an integral part of everyday existence is not immediately apparent to those fortunate enough to live in states governed by the rule of law. Just laws do not merely prevent corruption by meting out impartial punishment to offenders. They also help to create a society in which people can fulfil the basic requirements necessary for the preservation of human dignity without recourse to corrupt practices. Where there are no such laws, the burden of upholding the principles of justice and common decency falls on the ordinary people. It is the cumulative effect on their sustained effort and steady endurance which will change a nation where reason and conscience are warped by fear into one where legal rules exist to promote man's desire for harmony and justice while restraining the less desirable destructive traits in his nature.
Aung San Suu Kyi
They show as little Reason as Conscience who put the matter by with saying-"Men, in some cases, are lawfully made Slaves, and why may not these?" So men, in some cases, are lawfully put to death, deprived of their goods, without their consent; may any man, therefore, be treated so, without any conviction of desert? Nor is this plea mended by adding-"They are set forth to us as slaves, and we buy them without farther inquiry, let the sellers see to it." Such men may as well join with a known band of robbers, buy their ill-got goods, and help on the trade; ignorance is no more pleadable in one case than the other; the sellers plainly own how they obtain them. But none can lawfully buy without evidence that they are not concurring with Men-Stealers; and as the true owner has a right to reclaim his goods that were stolen, and sold; so the slave, who is proper owner of his freedom, has a right to reclaim it, however often sold.
Thomas Paine
Would you like to know, for instance, to what extent higher mathematics is used in our two great industries? Well, it is never used at all. Having found this to be the case in my own experience, after quite a long career, I wondered whether I was not an exception; so I made enquiries, and I found that it was a general rule that neither engineers nor managers used higher mathematics in carrying out their duties. We must, of course, learn mathematics that goes without saying but the question is how much must we learn? Up to the present this point has nearly always been decided simply by professors, but it seems to me to be a question in which professors do not count very much, and in which they count less as they become more learned and more devoted to their work. They would like to pass on all their scientific knowledge and they find that their pupils always leave them too soon.
Henri Fayol
As for one-party rule, it was questioned neither by the Left Opposition nor by the Right [wing of the Communist party]. All were prisoners of their own doctrine and their own past: all had worked with a will to create the apparatus of violence that crushed them. Bukharin' s hopeless attempt to form a league with Kamenev was no more than a pitiful epilogue to his career. In November 1929 the deviationists performed a public act of penance, but even this did not save them. Stalin' s victory was complete; the collapse of the Bukharinite opposition meant the triumph of autocracy in the party and in the country. In December 1929 Stalin' s fiftieth birthday was celebrated as a major historical event, and from this point we may date the "cult of personality". Trotsky' s prophecy of 1903 had come true: party rule had become Central Committee rule, and this in turn had becorne the personal tyranny of a dictator.
Leszek Kołakowski
...the principle of the limiting character of the velocity of light. This statement... is not an arbitrary assumption but a physical law based on experience. In making this statement, physics does not commit the fallacy of regarding absence of knowledge as evidence for knowledge to the contrary. It is not absence of knowledge of faster signals, but positive experience which has taught us that the velocity of light cannot be exceeded. For all physical processes the velocity of light has the property of an infinite velocity. In order to accelerate a body to the velocity of light, an infinite amount of energy would be required, and it is therefore physically impossible for any object to obtain this speed. This result was confirmed by measurements performed on electrons. The kinetic energy of a mass point grows more rapidly than the square of its velocity, and would become infinite for the speed of light.
Hans Reichenbach