Crito tells Socrates that he has heard one of the audience criticise severely this wisdom,--not sparing Socrates himself for countenancing such an exhibition. Socrates asks what manner of man was this censorious critic. 'Not an orator, but a great composer of speeches.' Socrates understands that he is an amphibious animal, half philosopher, half politician; one of a class who have the highest opinion of themselves and a spite against philosophers, whom they imagine to be their rivals. They are a class who are very likely to get mauled by Euthydemus and his friends, and have a great notion of their own wisdom; for they imagine themselves to have all the advantages and none of the drawbacks both of politics and of philosophy. They do not understand the principles of combination, and hence are ignorant that the union of two good things which have different ends produces a compound inferior to either of them taken separately. Crito is anxious about the education of his children, one of whom is growing up. The description of Dionysodorus and Euthydemus suggests to him the reflection that the professors of education are strange beings. Socrates consoles him with the remark that the good in all professions are few, and recommends that 'he and his house' should continue to serve philosophy, and not mind about its professors. ... There is a stage in the history of philosophy in which the old is dying out, and the new has not yet come into full life. Great philosophies like the Eleatic or Heraclitean, which have enlarged the boundaries of the human mind, begin to pass away in words. They subsist only as forms which have rooted themselves in language--as troublesome elements of thought which cannot be either used or explained away. The same absoluteness which was once attributed to abstractions is now attached to the words which are the signs of them. The philosophy which in the first and second generation was a great and inspiring effort of reflection, in the third becomes sophistical, verbal, eristic. It is this stage of philosophy which Plato satirises in the Euthydemus. The fallacies which are noted by him appear trifling to us now, but they were not trifling in the age before logic, in the decline of the earlier Greek philosophies, at a time when language was first beginning to perplex human thought. Besides he is caricaturing them; they probably received more subtle forms at the hands of those who seriously maintained them. They are patent to us in Plato, and we are inclined to wonder how any one could ever have been deceived by them; but we must remember also that there was a time when the human mind was only with great difficulty disentangled from such fallacies.