If you lived in a town under constant threat of rocket attacks or terrorist acts you would understand Israel's motivation for peace. As for Palestinians, they have no motivation whatsoever because the moment they signed peace with Israel the flow of money from Saudis, Iran and others would stop. Pals understand they present interest to their Arab brothers only for as long as they oppose Israel. If Pals really wanted peace and their state they would've had it long time ago, for example when Israel accepted Clinton's proposals while Pals rejected it.
MK Amir Peretz tells Hatnua Leader Livni he intends to return to Labor Party (Haaretz)
from the article: Netanyahu: Change in the air over Israel-Palestinian peace talks