There are as many philosophical schools as there are definitions of wisdom, which is supposed to bring happiness or at least the acceptance of unhappiness. As the concrete components were being understood, philosophy was losing scope until finally it encompassed only the abstract aspects. Consider, however, that the Ph. Thus, a Ph.D means that the holder of such honor is highly qualified to impart knowledge. In Arabic, the same word is applied for 'wise' and for 'physician,' who used to be considered as the summum of wisdom.
Experiments are the diamantine means to obtain factual knowledge.
Words, on the other hand, constitute an integral part of literature, not just a tool or a means. Comparison is employed to classify, yet classification is merely the starting step of science. The attribute in this analogy game is of being basic tools for the advancement of two out of the three branches of epistemology. Psychoanalysis is not a physical instrument and it deals with mental phenomena. Telescopes are limited to the observation of heavenly bodies and phenomena.