With a photo of Mount Kilimanjaro behind him, 'Three Cups of Tea' co-author Greg Mortenson tells the story of how he came to build schools in Pakistan and Afghanistan. Mortenson, the executive director of the Central Asia Institute, and David Oliver Relin, a Portland-based journalist, spoke to English students at Lakeridge High School Wednesday before their much-anticipated public appearance at Lake Oswego High School that evening. Relin read a portion of the book, while Mortenson talked and showed a video about the 'Pennies for Peace' program made by his 11-year-old daughter. The authors' appearance was part of the Lake Oswego Reads citywide reading program. 'People can be empowered to make a difference, and that's you,' Mortenson told the students, adding later, 'We owe it to our children to leave a legacy of peace.'