Thesauros Literature Philosophy Θεαίτητος

Θεαίτητος

Θεαίτητος Plato
148 THEAET. The numbers between these, such as three and five and all numbers which cannot be formed by multiplying equal factors, but only by multiplying a greater by a less or a less by a greater, and are therefore always contained in unequal sides, we represented by the shape of the oblong rectangle and called oblong numbers.
148 SOC. Very good; and what next?
148 THEAET. All the lines which form the four sides of the equilateral or square numbers we called lengths, and those which form the oblong numbers we called surds, because they are not commensurable with the others in length, but only in the areas of the planes which they have the power to form. And similarly in the case of solids. That is, cubes and cube roots.
148 SOC. Most excellent, my boys! I think Theodorus will not be found liable to an action for false witness.
148 THEAET. But really, Socrates, I cannot answer that question of yours about knowledge, as we answered the question about length and square roots. And yet you seem to me to want something of that kind. So Theodorus appears to be a false witness after all.
148 SOC. Nonsense! If he were praising your running and said he had never met any young man who was so good a runner, and then you were beaten in a race by a full grown man who held the record, do you think his praise would be any less truthful?
148 THEAET. Why, no.
148 SOC. And do you think that the discovery of knowledge, as I was just now saying, is a small matter and not a task for the very ablest men?
148 THEAET. By Zeus, I think it is a task for the very ablest.
148 SOC. Then you must have confidence in yourself, and believe that Theodorus is right, and try earnestly in every way to gain an understanding of the nature of knowledge as well as of other things.
148 THEAET. If it is a question of earnestness, Socrates, the truth will come to light.

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