5)

(15) "As they should and must."

Obviously (he answered).

Soc. And they who deal with one another as they ought, deal well and
nobly--is it not so?

Certainly (he answered).

Soc. And they who deal well and nobly by mankind are well-doers in
respect of human affairs?

That would seem to follow (he replied).

Soc. I presume that those who obey the laws do what is just and right?

Without a doubt, (he answered).

Soc. And by things right and just you know what sort of things are
meant?

What the laws ordain (he answered).

Soc. It would seem to follow that they who do what the laws ordain both
do what is right and just and what they ought? (16)

(16) "What they should and must."

Euth. I see no alternative.

Soc. But then, he who does what is just and right is upright and just?
(17)

(17) This proposition, as Kuhner argues (ad loc.), is important as
being the middle term of the double syllogism (A and B)--

A. Those who do what the law demands concerning men do what is
just and right.

Those who do what is just and right are righteous and just.

Ergo--Those who do what the law demands concerning men are
righteous and just.

B. Those who know what is just and right ought (and are bound,
cf. above, III. ix. 4) to do also what is just and right.

Those who do what is just and right are righteous and just.

Ergo--Righteous and Just ({dikaioi}) may be defined as "Those
who know what the law demands (aliter things right and just)
concerning men."

I should say so myself (he answered).

Soc. And should you say that any one obeys the laws without knowing what
the laws ordain?

I should not (he answered).

Soc. And do you suppose that any one who knows what things he ought to
do supposes that he ought not to do them? (18)

(18) Or, "and no one who knows what he must and should do imagines
that he must and should not do it?"

No, I suppose not (he answered).

Soc. And do you know of anybody doing other than what he feels bound to
do? (19)

(19) Or, "and nobody that you know of does the contrary of what he
thinks he should do?"

No, I do not (he answered).

Soc. It would seem that he who knows what things are lawful (20) as
concerning men does the things that are just and right?

(20) Or, "of lawful obligation."

Without a doubt (he answered).

Soc. But then, he who does what is jus