Strick, ok you have your point but, what about this one,

'Drive Carefully

But which side of the road must I drive upon?'

Therefore your Yeshua could not have intended the Law to be summarised into 'that' short form IF the person did not already know the 10 Commandments.

Besides he says as much in the NT. 'Do not call me good ... 'etc

In addition if the person did not know not to steal, lie, adulter etc how on earth could they be held to account?

Seems obvious to me!