There is, however, great disagreement among our authorities as to whether this ode was written in honour of Glaucus of Carystus, Leocrates, Agatharcus or Scopas, and whether the house was at Pharsalus, as Simonides himself seems to indicate in a certain passage, and as is recorded by Apollodorus, Eratosthenes, Euphorion and Eurypylus of Larissa, or at Crannon, as is stated by Apollas Callimachus, who is followed by Cicero, Cic. de Or. II. lxxxvi. 352. to whom the wide circulation of this story is due.

It is agreed that Scopas, a Thessalian noble, perished at this banquet, and it is also said that his sister's son perished with him, while it is thought that a number of descendants of an elder Scopas met their death at the same time.

For my own part, however, I regard the portion of the story which concerns Castor and Pollux as being purely fictitious, since the poet himself has nowhere mentioned the occurrence; and he would scarcely have kept silence on an affair which was so much to his credit.

This achievement of Simonides appears to have given rise to the observation that it is an assistance to the memory if localities are sharply impressed upon the mind, a view the truth of which everyone may realise by practical experiment. For when we return to a place after considerable absence, we not merely recognise the place itself, but remember things that we did there, and recall the persons whom we met and even the unuttered thoughts which passed through our minds when we were there before.

Thus, as in most cases, art originates in experiment. Some place is chosen of the largest possible extent and characterised by the utmost possible variety, such as a spacious house divided into a number of rooms. Everything of note therein is carefully committed to the memory, in order that the thought may be enabled to run through all the details without let or hindrance. And undoubtedly the first task is to secure that there shall be no delay in finding any single detail, since an idea which is to lead by association to some other idea requires to be fixed in the mind with more than ordinary certitude.

The next step is to distinguish something which has been written down or merely thought of by some particular symbol which will serve to jog the memory; this symbol may have reference to the subject as a whole, it may, for example, be drawn from navigation, warfare, etc., or it may, on the other hand, be found in some particular word. (For even in cases of forgetfulness one single word will serve to restore the memory.) However, let us suppose that the symbol is drawn from navigation, as, for instance, an anchor; or from warfare, as, for example, some weapon. These symbols are then arranged as follows.

The first though is placed, as it were, in the forecourt; the second, let us say, in the living-room; the remainder are placed in due order all round the impluvium The impluvium was the light-well in the centre of the atrium with a cistern beneath it to catch the rainwater from the roof, which sloped inwards. and entrusted not merely to bedrooms and parlours, but even to the care of statues and the like. This done, as soon as the memory of the facts requires to be revived, all these places are visited in turn and the various deposits are demanded from their custodians, as the sight of each recalls the respective details. Consequently, however large the number of these which it is required to remember, all are linked one to the other like dancers hand in hand, and there can be no mistake since they join what precedes to what follows, no trouble being required except the preliminary labour of committing the various points to memory.

What I have spoken of as being done in a house, can equally well be done in connexion with public buildings, a long journey, the ramparts of a city, or even pictures. Or we may even imagine such places to ourselves. We require, therefore, places, real or imaginary, and images or symbols, which we must, of course, invent for ourselves. By images I mean the words by which we distinguish the things which we have to learn by heart: in fact, as Cicero says, we use places like wax tablets and symbols in lieu of letters. De Or. II. lxxxvi. 354.

It will be best to give his words verbatim: De Or. II. lxxxvii. 358. We must for this purpose employ a number of remarkable places, clearly envisaged and separated by short intervals: the images which we use must be active, sharply-cut and distinctive, such as may occur to the mind and strike it with rapidity. This makes me wonder all the more, how Metrodorus Of Scepsis, the favourite of Mithradates Eupator. See de Or. II. lxxxviii. 360. He used the signs of the Zodiac as aids to the memory, subdividing each into thirty compartments. Quintilian wonders on what principle he can have made such a division, necessarily purely artificial in nature. should have found three hundred and sixty different localities in the twelve signs of the Zodiac through which the sun passes. It was doubtless due to the vanity and boastfulness of a man who was inclined to vaunt his memory as being the result of art rather than of natural gifts.

I am far from denying that those devices may be useful for certain purposes, as, for example, if we have to reproduce a number of names in the order in which we heard them. For those who use such aids place the things which have to be remembered in localities which they have previously fixed in the memory; they put a table, for instance, in the forecourt, a platform in the hall and so on with the rest, and then, when they retrace their steps, they find the objects where they had placed them.

Such a practice may perhaps have been of use to those who, after an auction, have succeeded in stating what object they had sold to each buyer, their statements being checked by the books of the money takers; a feat which it is alleged was performed by Hortensius. It will, however, be of less service in learning the various parts of a set speech. For thoughts do not call up the same images as material things, and a symbol requires to be specially invented for them, although even here a particular place may serve to remind us, as, for example, of some conversation that may have been held there. But how can such a method grasp a whole series of connected words?

I pass by the fact that there are certain things which it is impossible to represent by symbols, as, for example, conjunctions. We may, it is true, like shorthand writers, have definite symbols for everything, and may select an infinite number of places to recall all the words contained in the five books of the second pleading against Verres, and we may even remember them all as if they were deposits placed in safe-keeping. But will not the flow of our speech inevitably be impeded by the double task imposed upon our memory?

For how can our words be expected to flow in connected speech, if we have to look back at separate symbols for each individual word? Therefore the experts mentioned by Cicero de Or. II. lxxxvii. 360. Charmadas or Charmides, an elder contemporary of Cicero. as having trained their memory by methods of this kind, namely Charmadas, and Metrodorus of Scepsis, to whom I have just referred, may keep their systems for their own use. My precepts on the subject shall be of a simpler kind.