No it’s not. It’s the desire to do something, not the actual planning to do it.
If I saw a beautiful woman in the street and my wife said: ‘I’d bet you’d like to make love to her’, then for the sake of some marital harmony I would deny it. But she would know and I would know that she would know that I would.
But, and this is the important point, I wouldn’t make any effort whatsoever to get to know that woman with a view to getting her into the sack. That would be immoral. But just having a natural reaction, finding her physically attractive and perhaps imagining what it would be like to be in bed with her, thoughts which would be impossible to control, is not.
You can’t hold someone to account for what they think. You certainly can if that person starts to make plans to actualise them.
That’s what Pallas meant by thought crime.
Right. I don’t disagreee with the assesment of your example. But like I said above, it’s more that just the desire to something. It’s the
willingness to fulfill that desire. The difference may seem subtle, I’ll admit, but it’s quite significant.
In your example, you say that you would not make any effort towards getting to know the woman with the goal of taking her to bed. Even if you found yourself in the situation where you had to interact with the woman (if she was a co-worker, for example) on a daily basis and you
did get to know her, you would still never have the intention of seeking a sexual relationship with her.
Contrast that with a married man who
would seek a sexual relationship with the woman. If he gets to know her, but fails to take her to bed, he is still an aldulterer “in his heart.” Even if he fails in getting to know her, he is still the same person “on the inside”.
You stated that the important point was that you wouldn’t make any effort towards fulfilling the natural desire. Right you are! That is the important point, indeed. But the other half of that important point is that another man
would make the effort. The actual effort (action) is a result of his intentions. The effort/action comes
after the intention has been set. The sin has already been commited internally.