Astronaut limit water use to only about three gallons (11 liters) per day. In Russia, cosmonauts are awarded Pilot-Cosmonaut of the Russian Federation upon completion of their missions, often accompanied with the award of Hero of the Russian Federation. This follows the practice established in the USSR where cosmonauts were usually awarded the title Hero of the Soviet Union. At NASA, those who complete astronaut candidate training receive a silver lapel pin. Once they have flown in space, they receive a gold pin. U.S. astronauts who also have active-duty military status receive a special qualification badge, known as the Astronaut Badge,
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,