is impossible: for it is a strange thing, as Socrates thought, that while Knowledge is present in his mind something else should master him and drag him about like a slave. Socrates in fact contended generally against the theory, maintaining there is no such state as that of Imperfect Self-Control, for that no one acts contrary to what is best conceiving it to be best but by reason of ignorance what is best.
With all due respect to Socrates, his account of the matter is at variance with plain facts, and we must enquire with respect to the affection, if it be caused by ignorance what is the nature of the ignorance: for that the man so failing does not suppose his acts to be right before he is under the influence of passion is quite plain.183
There are people who partly agree with Socrates and partly not: that nothing can be stronger than Knowledge they agree, but that no man acts in contravention of his conviction of what is better they do not agree; and so they say that it is not Knowledge, but only Opinion, which the man in question has and yet yields to the instigation of his pleasures.
But then, if it is Opinion and not Knowledge, that is it the opposing conception be not strong but only mild (as in the case of real doubt), the not abiding by it in the face of strong lusts would be excusable: but wickedness is not excusable, nor is anything which deserves blame.
Well then, is it Practical Wisdom which in this case offers opposition: for that is the strongest principle? The supposition is absurd, for we shall have the same man uniting Practical Wisdom and Imperfect Self-Control, and surely no single person would maintain that it is consistent with the character of Practical Wisdom to do voluntarily what is very wrong; and besides we have shown before that the very mark of a man of this character is aptitude to act,