Some other touches of inimitable grace and art and of the deepest wisdom may be also noted; such as the prayer or 'collect' which has just been cited, 'Give me beauty,' etc.; or 'the great name which belongs to God alone;' or 'the saying of wiser men than ourselves that a man of sense should try to please not his fellow-servants, but his good and noble masters,' like St. Paul again; or the description of the 'heavenly originals'... The chief criteria for determining the date of the Dialogue are (1) the ages of Lysias and Isocrates; (2) the character of the work. Lysias was born in the year 458; Isocrates in the year 436, about seven years before the birth of Plato. The first of the two great rhetoricians is described as in the zenith of his fame; the second is still young and full of promise. Now it is argued that this must have been written in the youth of Isocrates, when the promise was not yet fulfilled. And thus we should have to assign the Dialogue to a year not later than 406, when Isocrates was thirty and Plato twenty-three years of age, and while Socrates himself was still alive. Those who argue in this way seem not to reflect how easily Plato can 'invent Egyptians or anything else,' and how careless he is of historical truth or probability. Who would suspect that the wise Critias, the virtuous Charmides, had ended their lives among the thirty tyrants? Who would imagine that Lysias, who is here assailed by Socrates, is the son of his old friend Cephalus? Or that Isocrates himself is the enemy of Plato and his school? No arguments can be drawn from the appropriateness or inappropriateness of the characters of Plato. (Else, perhaps, it might be further argued that, judging from their extant remains, insipid rhetoric is far more characteristic of Isocrates than of Lysias.) But Plato makes use of names which have often hardly any connection with the historical characters to whom they belong. In this instance the comparative favour shown to Isocrates may possibly be accounted for by the circumstance of his belonging to the aristocratical, as Lysias to the democratical party.