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The article reflects on the role of the human brain in the execution and integration of man's actions. It states that it is the brain that facilitates adaptation while religion is a product of brain's evolution which is to unify experiences. It also discusses man's destructive behavior stating that man's technological activities may result to nature's destruction.

The article provides information on the implications of science and technology to the adaptation of humankind to the environment. Overpopulation resulted from the impact of modern medicine and public health on underdeveloped countries since the World War II. The nuclear weapons and their delivery systems are the result of advances in physical science and technology. There are advances in technology that have been made specifically for fertility control in the form of contraceptives and other procedures. Better education and desire for upward social mobility are powerful motivations for smaller families.

The article discusses some ways in which nature deals with overcrowding in animal species to reflect in the world human population explosion. According to the author, the growth rate of microorganisms accelerates exponentially and declines when toxic metabolic products such as acids or alcohol accumulate. Another findings note that food and predators are the controlling factors in limiting populations for mammals other than man. He emphasizes that population growth depends only on the difference between birth rate and death rate.

The article focuses on the relationship between science and society. According the author, there is basic underlying assumption that science is concerned with discovering truth, and the separation of the true from the false, and that truth is intrinsically good. In connection, the ideas that truth makes men free is an article of faith of most civilized people and is a fundamental tenet to those concerned with liberal education. Moreover, religion, philosophy, the arts and sciences are all concerned with attempts of man in making a unifying sense of himself and the world he lives in.

The article offers information on genetic engineering. It is established that humans share the basic mechanism of biological origin with all living things. Evolution by natural selection involves alterations from time to time in the structure of the molecules composing the genetic material. This material is comprised of nucleic acids (DNA and RNA). The author noted that one of the essential advancements of science has been the discovery of the chemical nature of the gene. This new knowledge is proposed to have great influence for medicine, and in some other means, may also improve human intelligence and other socially desirable characteristics.