Institutio Oratoria

For there can be but few whose memory is so barren that they will fail to recognise the symbols with which they have marked different passages. But if anyone is slow to recognise his own signs, he should employ the following additional remedy, which, though drawn from the mnemonic system discussed above, [*](Sects. 18–23.) is not without its uses: he will adapt his symbols to the nature of the thoughts which tend to slip from his memory, using an anchor, as I suggested above, if he has to speak of a ship, or a spear, if he has to speak of a battle.

For symbols are highly efficacious, and one idea suggests another: for example, if we change a ring from one finger to another or tie a thread round it, it will serve to remind us of our reason for so doing. Specially effective are those devices which lead the memory from one thing to another similar thing which we have got to remember; for example, in the case of names, if we desire to remember the name Fabius, we should think of the famous Cunctator, whom we are certain not to forget, or of some friend bearing the same name.

This is specially easy with names such as Aper, Ursus, Naso, or Crispus, [*](Boar, Bear, Long-nose, and Curly respectively.) since in these cases we can fix their origin in our memory. Origin again may assist us to a better remembrance of derivative names, such as Cicero, Verrius, or Aurelius. [*]( Cicero, a sower of chickpea ( cicer ), according to Pliny (xviii. 10). Aurelius = Auselius, child of the sun ( a sole ) according to Festus. Verrius unknown. ) However, I will say no more on this point.

There is one thing which will be of assistance to everyone, namely, to learn a passage by heart from the same tablets on which he has committed it to writing. For he will have certain tracks to guide

This device bears some resemblance to the mnemonic system which I mentioned above, but if my experience is worth anything, is at once more expeditious and more effective. The question has been raised as to whether we should learn by heart in silence; it would be best to do so, save for the fact that under such circumstances the mind is apt to become indolent, with the result that other thoughts break in. For this reason the mind should be kept alert by the sound of the voice, so that the memory may derive assistance from the double effort of speaking and listening. But our voice should be subdued, rising scarcely above a murmur.

On the other hand, if we attempt to learn by heart from another reading aloud, we shall find that there is both loss and gain; on the one hand, the process of learning will be slower, because the perception of the eye is quicker than that of the ear, while, on the other hand, when we have heard a passage once or twice, we shall be in a position to test our memory and match it against the voice of the reader. It is, indeed, important for other reasons to test ourselves thus from time to time, since continuous reading has this drawback, that it passes over the passages which we find hard to remember at the same speed as those which we find less difficulty in retaining.

By testing ourselves to see