President Obama welcomed Chinese President Hu Jintao to the White House Wednesday with warm words about cooperation and sober reminders of the high stakes of the relationship between the two superpowers and the global importance of universal freedoms. "We have an enormous stake in each other's success," Obama said. "...Nations, including our own, will be more prosperous and more secure when we work together." In his remarks, Hu said he hoped to "increase mutual trust" between China and the U.S. during his visit, and build a "comprehensive" friendship for the 21st century. " Our cooperation as partners should be based on mutual respect," Hu said, through an interpreter. "We live in an increasingly diverse and colorful world. China and the United States should respect each other's choice of development path and each other's core interests." In a clear reminder of U.S. concerns about China's human right's record, Obama told Hu that, "societies are more harmonious, nations are more successful, and the world is more just, when the rights and responsibilities of all nations and all people are upheld, including the universal rights of every human being." The Chinese leader arrived on the south lawn of the White House in a black limousine festooned with the American and Chinese flags. Honor guards from the four military services stood at attention in dress uniforms, a military band played patriotic tunes and there was a 21-gun salute.