Dwight Eisenhower actually said...

We must never stop trying, and that's the reason I say I am personally ready to go any place where I think any good can be done, and at any ...

Public opinion is the only motivating force there is in a republic or in a democracy.

We ought to negotiate and keep negotiating until we have gotten somewhere.

No, other than to continue to urge both sides to continue negotiations to find a reasonable answer.