U.S. President, George W. Bush, has asserted that all the decisions he took, during the eight years of his Presidency, were in the best interest of the country. In his farewell address to the nation, Bush acknowledged that he did experience setbacks during his eight years at White House and would have taken some of the decisions differently if given a chance, but all of them were in the best interest of the nation. "Like all who have held this office before me, I have experienced setbacks. There are things I would do differently if given the chance. Yet I have always acted with the best interests of our country in mind," Bush said in his speech on Thursday. "I have followed my conscience and done what I thought was right. You may not agree with some tough decisions I have made. But I hope you can agree that I was willing to make the tough decisions," said the outgoing U.S. President in his farewell address from White House. All this was in an apparent response to those who have accused him of imposing two wars on the nation and leading the country into an economic recession, the worst after the great depression of the last century. In his speech, Bush cautioned that the country might have to take hard decisions in the years to come. "The decades ahead will bring more hard choices for our country, and there are some guiding principles that should shape our course," he said. Bush argued that the U.S. must continue to engage the world with confidence and clear purpose. "In the face of threats from abroad, it can be tempting to seek comfort by turning inward. But we must reject isolationism and its companion, protectionism. Retreating behind our borders would only invite danger. In the 21st century, security and prosperity at home depend on the expansion of liberty abroad. If America does not lead the cause of freedom, that cause will not be led," Bush argued. Reading out the words of the former President Thomas Jefferson, "I like the dreams of the future better than the history of the past," Bush said he shares this optimism as he leaves the White House in five days from now. "America is a young country, full of vitality, constantly growing and renewing itself. And even in the toughest times, we lift our eyes to the broad horizon ahead," Bush said. What Bush left unsaid in farewell speech In his final speech to the nation, President George W. Bush took pride in his record at home and abroad, describing hopeful events and accomplishments. But what he left unsaid was significant too. Afghanistan Bush said: "Afghanistan has gone from a nation where the Taliban harboured al-Qaeda and stoned women in the streets to a young democracy that is fighting terror and encouraging girls to go to school." He did not say that the deteriorating situation in Afghanistan has forced the U.S. to rush as many as 30,000 more troops there, seeking to turn the tide in fighting that has seen al-Qaeda-linked militants and the Taliban make a comeback after initial defeats in the U.S.-led invasion in 2001. Iraq Bush said: "Iraq has gone from a brutal dictatorship and a sworn enemy of America to an Arab democracy at the heart of the Middle East and a friend of the United States." He did not mention that violence in Iraq still persists despite improved security, that Iraq remains gripped by hostility between Shiite and Sunni Muslims, that most Americans think the war was a mistake, and that weapons of mass destruction " the original rationale for the war " were never found. Economy Bush said: "When challenges to our prosperity emerged, we rose to meet them. Facing the prospect of a financial collapse, we took decisive measures to safeguard our economy. These are very tough times for hardworking families, but the toll would be far worse if we had not acted." He did not say that the largest of those decisive measures " an unpopular $700 billion bailout of the U.S. financial sector " has come under harsh criticism because of a lack of transparency and accountability about how the first $350 billion batch of money was spent. Education Bush said: "Across our country, students are rising to meet higher standards in public schools." He did not say that one of the most common concerns about his No Child Left Behind education law is that some States set the bar too low because they are allowed to determine their own academic standards. Veterans Bush said: "Funding for our veterans has nearly doubled." He did not say that embarrassing disclosures of shoddy conditions at Walter Reed Army Medical Center and other facilities in 2007 forced his administration to retool the system of care for veterans. __ Katrina Bush mentioned Hurricane Katrina only once in this speech, praising Tony Recasner, "a principal who opened a new charter school from the ruins"of the storm. He did not say that his Government's response to the worst natural disaster in U.S. history included key failures, as even a White House report later found.