From the INTRODUCTION. The measurement of intelligence at the present time is a well recognized part of psychology. The growth of this work and the interest shown in it during the last three decades have been truly remarkable. We have witnessed the establishment of innumerable clinics and the appearance of the "mental tester." This growth has been characterized by the practical considerations of clinical examinations. The need for a psychological examination has been recognized and answers to practical situations have been (...) demanded before the psychologist has really had time to formulate his own conceptions of the whole problem. Theoretical considerations have lagged behind the practical application of mental tests. We have been measuring intelligence long before we have decided as to what intelligence really is. Far from being a drawback, as this at first sight would appear to be, it has in fact proved' to be of distinct advantage, since the measurement of this something, that we have been making, is leading us slowly but surely to a real knowledge of what can with profit be called "general intelligence." Only after considerable work with mental tests did psychologists arrive at the now generally accepted definition of intelligence, as enunciated by Stern, that "Intelligence is a general capacity of an individual consciously to adjust his thinking to new requirements: it is general mental adaptability to new problems and conditions of life." Although even this definition of intelligence may be modified in the future, it serves, at the present time, as a good working hypothesis for the selection of tests for mental measurement. Other conceptions of general intelligence are numerous and many are very similar. Binet, for example, says: "It seems to us that in intelligence there is a fundamental faculty, the alteration or the lack of which is of the utmost importance for practical life. This faculty is judgment, otherwise called good sense, initiative, the faculty of adapting one's self to circumstances. To judge well, to comprehend well, to reason well, these are the essential activities of intelligence." Meumann says general intelligence depends on two qualities, "(1) on the capacity for independent, productive thought (productive, synthetic thinking).... (2).the intensity of the whole mental life." Ebbinghaus makes intelligence include abstraction and the ability to compare and contrast. Burt says that the result of his work "strongly suggests that it is one feature or function of attentive consciousness which forms the basis of intelligence, namely, the power of readjustment to relatively novel situations by organizing new psycho-physical co-ordinations." And lastly Hart and Spearman look upon general intelligence as a "common factor" or "central tendency" not exactly definable, but entering into all sorts of mental activities to a greater or less degree. In addition to these hypotheses as to the nature of intelligence, theoretical considerations as to the growth of intelligence and the general distribution of the various grades of intelligence are arising as a direct result of the practical work being done. Questions as to the rate of increase in normal mentality are being raised, and the theoretical assumptions, upon which we base our classification of individuals into different groups, are being discussed. (shrink)

This section discusses mostly some unsolved problems. . . .I hope that some mathematicians who are interested in a classification of sets of real numbers, in particular sets with Lebesgue measure zero, will read it and try to find solutions for the problems here outlined.

Poverty has continued to be an enormous challenge for Africa. Immoral political decisions and tactics have led to the continued suffering of the landless poor in the city of Harare. With no consideration for the dignity of people, the government of Zimbabwe through Operation Murambatsvina demolished shelters belonging to the poor in the city a decade and half ago. To this day, most of the victims of this destruction still lack adequate accommodation. The majority urban poor have been excluded from (...) the community and inhabit shanty towns around Harare. Deprived of justice, the poor are alienated from their right to land, nourishment and dignified life. This complete disregard for life and African community values ought to be challenged. Ubuntu moral theory presents necessary guiding principles for human progress that achieves genuine harmony and equality among all people. In light of the experiences of deadly but preventable poverty in Harare, the will-to-live for all requires confirmation. Every human being is endowed with irrevocable intrinsic worth. The elimination of poverty requires practical philosophical resolutions that are driven by sincere respect for human life. (shrink)