Postulate quotes
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David_Bohm
Theory Purpose
“we must avoid postulating a new element for each new phenomenon. But an equally serious mistake is to admit into the theory only those elements which can now be observed. For the purpose of a theory is not only to correlate the results of observations that we already know how to make, but also to suggest the need for new kinds of observations and to predict their results. In fact, the better a theory is able to suggest the need for new kinds of observations and to predict their results correctly, the more confidence we have that this theory is likely to be good representation of the actual properties of matter and not simply an empirical system especially chosen in such a way as to correlate a group of already known facts.”
- Source: David Bohm in the paper “A Suggested Interpretation of the Quantum Theory in Terms of ‘Hidden’ Variables. II”. Published January 1952 in Physical Review volume 35 issue 2.
- Keywords: Avoid_quotes Postulate_quotes Element_quotes New_quotes Phenomenon_quotes Mistake_quotes Admit_quotes Theory_quotes Observation_quotes Purpose_quotes Correlation_quotes Result_quotes Already_quotes Make_quotes Suggest_quotes Need_quotes Kind_quotes Prediction_quotes Better_quotes Correct_quotes Confidence_quotes Good_quotes Represent_quotes Actual_quotes Property_quotes Matter_quotes Empirical_quotes System_quotes Choose_quotes Way_quotes Group_quotes Known_quotes Fact_quotes
M_King_Hubbert
Principle of Uniformity
“[The] first postulate of the Principle of Uniformity, namely, that the laws of nature are invariant with time, is not peculiar to that principle or to geology, but is a common denominator of all science. In fact, instead of being an assumption or an ad hoc hypothesis, it is simply a succinct summation of the totality of all experimental and observational evidence.”
- Source: Marion King Hubbert, 'Critique of the Principle of Uniformity', in C. C. Albritton (ed.), Uniformity and Simplicity (1967), 29.
Thomas_Robert_Malthus
Population and Subsistence
“I think I may fairly make two postulata. First, That food is necessary to the existence of man. Secondly, That the passion between the sexes is necessary, and will remain nearly in its present state... Assuming then my postulata as granted, I say, that the power of population is indefinitely greater than the power in the earth to produce subsistence for man. Population, when unchecked, increases in a geometrical ratio. Subsistence increases only in an arithmetical ratio... This implies a strong and constantly operating check on population from the difficulty of subsistence. This difficulty must fall somewhere; and must necessarily be severely felt by a large portion of mankind... The germs of existence contained in this spot of earth, with ample food, and ample room to expand in, would fill millions of worlds in the course of a few thousand years... Consequently, if the premises are just, the argument is conclusive against the perfectibility of the mass of mankind.”
- Source: Thomas Robert Malthus. The essay: “An Essay on the Principle of Population as It Affects the Future Improvement of Society, with Remarks on the Speculations of Mr. Goodwin, M. Condorcet and Other Writers”. Originally published: 1798. Edition: First. Publisher: J. Johnson. Location: London, England. Chapter: 1. Retrieved From: <https://en.wikisource.org/wiki/An_Essay_on_the_Principle_of_Population>. Retrieval Date: 2024-04-03.
- Notes: The dire predictions of Malthus have not yet been fulfilled. This is primarily due to errors in his initial assumptions (which are properly identified), not in errors in his logic. The first assumption (or postulatum) is that food production increases arithmetically (linearly). But historically, food production has increased geometrically (exponentially) due to advances in mechanical technologies and biotechnologies. The second assumption assumes passion and birth rates are directly correlated. However, technological advances in birth control, cultural advances in women's rights, and rising prosperity (which lowers birth rates) have falsified this assumption. Additional questionable assumptions are also made which are not initially specified.
- See Also:
- Keywords: Think_quotes Fair_quotes Assumption_quotes Postulate_quotes Food_quotes Existence_quotes Passion_quotes Sex_quotes Man_quotes Woman_quotes Remain_quotes Grant_quotes Power_quotes Population_quotes Indefinite_quotes Greater_quotes Earth_quotes World_quotes Production_quotes Subsistence_quotes Uncheck_quotes Increase_quotes Geometric_quotes Exponential_quotes Ratio_quotes Arithmetic_quotes Linear_quotes Imply_quotes Strong_quotes Constant_quotes Operate_quotes Check_quotes Difficult_quotes Fall_quotes Necessary_quotes Severe_quotes Feel_quotes Large_quotes Portion_quotes Mankind_quotes Humanity_quotes Germ_quotes Contain_quotes Spot_quotes Ample_quotes Room_quotes Expand_quotes Fill_quotes Course_quotes Few_quotes Thousand_quotes Year_quotes Premises_quotes Argument_quotes Consequence_quotes Conclusive_quotes Against_quotes Perfectibility_quotes Mass_quotes Hunger_quotes Starvation_quotes Malthusian_quotes
