MENO: Certainly.

SOCRATES: Well, I will try and explain to you what figure is. What do you
say to this answer?--Figure is the only thing which always follows colour.
Will you be satisfied with it, as I am sure that I should be, if you would
let me have a similar definition of virtue?

MENO: But, Socrates, it is such a simple answer.

SOCRATES: Why simple?

MENO: Because, according to you, figure is that which always follows
colour.

(SOCRATES: Granted.)

MENO: But if a person were to say that he does not know what colour is,
any more than what figure is--what sort of answer would you have given him?

SOCRATES: I should have told him the truth. And if he were a philosopher
of the eristic and antagonistic sort, I should say to him: You have my
answer, and if I am wrong, your business is to take up the argument and
refute me. But if we were friends, and were talking as you and I are now,
I should reply in a milder strain and more in the dialectician's vein; that
is to say, I should not only speak the truth, but I should make use of
premisses which the person interrogated would be willing to admit. And
this is the way in which I shall endeavour to approach you. You will
acknowledge, will you not, that there is such a thing as an end, or
termination, or extremity?--all which words I use in the same sense,
although I am aware that Prodicus might draw distinctions about them: but