Pauling’s health remained robust into his late eighties -- an effect he credited to large doses of Vitamin C. Even at ninety years of age, his hair white and wispy under his trademark beret, his walk slowed, his energy beginning to wane, he still spoke vehemently against the madness of war. US activities in the Middle East, including George H. W. Bush’s invasion of Iraq, now became a target of Pauling’s antiwar ire. "WAR IS IMMORAL" he wrote at the top of a draft letter to the first President Bush in 1989. "As human beings, we have the duty to strive to decrease the amount of human suffering. . . . WAR CAUSES HUMAN SUFFERING!" Whether the cause of war was oil or politics, anti-Communism or pro-democracy, did not make much of a difference. He felt at the end of his life the same way he felt in the middle: life is sacred, suffering is avoidable, and war is immoral. He would never fall silent, never be intimidated, never stop speaking, teaching, and working for what he believed to be right.