The much less verbose true quote, from Begin's "acerbic" visit to the US Congress in 1982 (during the Lebanon War), as found in Time Magazine's contemporary report http://content.time.com/time/subscriber/article/0,33009,925497-6,00.html (George J. Church, July 05, 1982):
"Don't threaten us with cutting off aid to give up our principles!"
"Sir, do not threaten us with cutting aid. First of all, you should know that this is not a one-way street. You help us, and we are very grateful for your help; but this is a two-way street: We do a lot for you. And also in recent battles we did a lot for the United States; and I gave some examples, but this is not the place to go into them. Therefore, do not threaten us with cuts in aid, but take note: That if at any time you demand of us to yield on a principle in which we believe, while threatening to cut aid, we will not abandon the principle in which we believe - and propose cutting aid. The argument went approximately thus."
On the other hand, contemporary reports give the true quote as also being far less verbose.
Source: attributed as alleged reply to Senator Joe Biden in Ronn Torossian's op-ed "Menachem Begin To Joe Biden: I Am Not A Jew With Trembling Knees" https://www.jewishpress.com/indepth/opinions/menachem-begin-to-joe-biden-i-am-not-a-jew-with-trembling-knees/2015/04/03, in 2015 without source. Possibly of earlier origin.
Source: As found in Time Magazine's contemporary report http://content.time.com/time/subscriber/article/0,33009,925497-6,00.html
