Astronaut youngest person to fly in space is Gherman Titov, who was 25 years old when he flew Vostok 2. (Titov was also the first person to suffer space sickness). The oldest person who has flown in space is John Glenn, who was 77 when he flew on STS-95. 438 days is the longest time spent in space, by Russian Valeri Polyakov. As of 2006, the most spaceflights by an individual astronaut is seven, a record held by both Jerry L. Ross and Franklin Chang-Diaz. The farthest distance from Earth an astronaut has traveled was , when Jim Lovell, Jack Swigert,
Chinese as a foreign language characters already listed above. In his 1991 article "Why Chinese is So Damn Hard", David Moser states that an English speaker would find the "ridiculous" writing system "unreasonably hard to learn" to the level of achieving literacy due to the large number of characters. Moser argued that he was unable to "comfortably read" a newspaper even though he knew 2,000 characters. The 17th-century Protestant theologian Elias Grebniz, said that Chinese characters were: In Gautier's novella "Fortunio", a Chinese professor from the Collège de France, when asked by the protagonist to translate a love letter suspected to be written in Chinese,