"a thief's feeling of guilt lies deep in the Israeli psyche. Many of them know that they are guilty. The politicians and military cannot allow themselves to say or feel that they are in any way at fault, of course, but now and then a writer feels it. And they deal with this feeling in one of two ways: either they try to repress it, or they try to find a solution. Every so often, Israeli writers try to make contact and protest against the occupation. The problem is that they seldom talk about al-Nakba and their responsibility for what happened in 1948...That is the reason why they don't want to let the 1948 refugees back, because then they will have to admit that they have been lying the whole time. Because the official version has always been that the Palestinians left their homes voluntarily. It is a psychological and moral problem"
January 1, 1970
https://en.wikiquote.org/wiki/1948_Palestinian_exodus