Mallory was an English mountain climber who participated in the Everest expeditions of 1921, 1922, and 1924. The 1924 expedition culminated in a bold and possibly successful drive toward the summit by Mallory and Andrew Irvine, from which they did not return. Mallory’s body was discovered on Everest in 1999. His achievements and the mystery surrounding his final effort have made him a mountaineering legend. What “three most famous words in mountaineering” are attributed to Mallory? Discuss