Summing up the pre-Christian ethics of ancient Greece, we see that in spite of the different interpretations of morality by the Greek thinkers they all agreed on one point: they saw the source of morality in Man, in his natural tendencies and in his reason. They were far from having a clear idea as to the true nature of these tendencies. But they taught that, owing to his reason and owing to his social mode of life, Man naturally develops and strengthens his moral tendencies, which are useful for the maintenance of the sociality essential to him. For this reason the Greek thinkers did not look for any external, supernatural forces to come to the aid of Man. Such was the essence of the teaching of Socrates, Aristotle, and partly even of Plato and of the early Stoics, though Aristotle already attempted to base morality on a natural-scientific basis. Only Plato introduced into morality a semi-religious element. On the other hand, Epicurus, possibly in opposition to P...
It was natural that, as soon as science had attained such generalizations, the need of a synthetic philosophy should be felt; a philosophy which, no longer discussing "the essence of things," first causes," the " aim of life," and similar symbolic expressions, and repudiating all sorts of anthropomorphism (the endowment of natural phenomena with human characteristics), should be a digest and unification of all our knowledge; a philosophy which, proceeding from the simple to the complex, would furnish a key to the understanding of all nature, in its entirety, and, through that, indicate to us the lines of further research and the means of discovering new, yet unknown, correlations (so-called laws), while at the same time it would inspire us with confidence in the correctness of our conclusions, however much they may differ from current superstitions. Such attempts at a constructive synthetic philosophy were made several times during the nineteenth...