SCIENCE 391 



acquire, but he must bear in mind that in this chapter, 

 as in the preceding chapters, we have but given him an 

 introduction to the elements of the science therein 

 treated of. 



A philosophical foundation is absolutely necessary, 

 however, to establish the validity of all sciences that is, 

 fundamental, or metaphysical, science must support and 

 justify all its subordinate branches. By various com- 

 binations of the different lines of inquiry different kinds 

 of study which we have considered in this book, each 

 distinct science is constituted. 



Thus (the co-operation of philosophy being in each 

 case understood) by a combination of mathematics with 

 the sciences which regard the stability and movements 

 of bodies and the action of the various physical energies, 

 we have the vast science of Physics. By the study of 

 the laws of life, taken in conjunction with the lines of 

 inquiry included under physics, we have Biology, with its 

 subordinate group of sciences such as physiology, anat- 

 omy, &c. By the aid of psychology, taken with biology 

 as applied to man, we have the special science of man- 

 kind or Anthropology, one department of which is logic. 

 By the application of facts drawn from anthropology, 

 especially as regards moral intuitions and moral rela- 

 tions, we have the science of right and wrong, that is 

 Ethics. By a study of ethics and certain departments of 

 anthropology, taken in conjunction with the law of 

 causation and with history, we have Theology. Lastly, 

 from anthropology, and the last-mentioned science, 

 together with ethics, we may attain the science of, and 

 rules for, the reasonable regulation of men in communi- 

 ties, so as to produce the greatest good, namely, the 

 science and the art of Politics. 



