TODAY marks 15 years since an assassin’s bullet killed my friend, Yitzhak Rabin, the Israeli prime minister. Since his death, not a week has gone by that I have not missed him. I loved him and his wife, Leah, very much. On the occasion of the anniversary of his death, his yahrzeit, the world would do well to remember the lessons of his life: his vision for freedom, tolerance, cooperation, security and peace is as vital now as it was 15 years ago, when he happily spoke and sang for peace at a huge rally in Tel Aviv just before he was killed.

Rabin was utterly without pretense. When David Ben-Gurion sent him as a young man to represent Israel during armistice talks in 1949, he had never before worn a neck tie, so a friend tied it, and showed him how to loosen it so he could preserve the knot for future use. True to form, two weeks before his assassination, he arrived in Washington at a black-tie event without the black tie. We borrowed one for him, and I still smile whenever I think about straightening it for him, just as Hillary does when she remembers how he complained when she made him go out on the Truman Balcony to smoke.

The story of Yitzhak Rabin and the story of Israel are intertwined. He took up arms to defend Israel’s freedom, and laid down his life to secure Israel’s future. When he came to the White House in 1993 to sign the Declaration of Principles with the Palestinians, he was a military hero, uniquely prepared to lead his people into a new era. Before shaking the hand of Yasir Arafat, a man he had long considered his mortal foe, he spoke directly to the Palestinian people:

“Enough of blood and tears. Enough. We have no desire for revenge. We harbor no hatred toward you. We, like you, are people  people who want to build a home, to plant a tree, to love, to live side by side with you in dignity, in empathy, as human beings, as free men. We are today giving peace a chance, and saying again to you, enough. Let us pray that a day will come when we all will say, ‘Farewell to the arms.’”

A decade and a half since his death, I continue to believe that, had he lived, within three years we would have had a comprehensive agreement between the Israelis and Palestinians. To be sure, the enemies of peace would have tried to undermine it, but with Rabin’s leadership, I am confident a new era of enduring partnership and economic prosperity would have emerged.