The Tsar's children lived very simply. They slept on hard camp cots without pillows when they were healthy. This tradition had been started in the rule of Catherine the Great when she first made her grandson Alexander do so. They took cold baths in the morning, and had to clean their rooms and do needlework. Most people living with them, including servants, usually called the Grand Duchess by her first name, Olega Nikolaevna, instead of her title or "Her Imperial Highness". However, once on a visit to a museum where state carriages were displayed, Olga ordered one of the servants to prepare the largest and most beautiful carriage for her daily drive. She was not obeyed. She also felt oldest children should be respected. When she was told the Biblical story of Joseph, she felt sorry for the older brothers instead of Joseph. She also sympathized with Goliath rather than David in the story of David and Goliath. Olga loved reading. Unlike her sisters, she also liked school work. Pierre Gilliard said that Olga had a very "quick brain", with "good reasoning powers" and "a very independent manner, and a gift for swift (quick) and entertaining (funny) repartee (replies)." She enjoyed reading about politics in newspapers. Olga also liked choosing books from what her mother read. When she was found reading a book before her mother had read it, Olga joked that her mother must wait until Olga had made sure that it was a proper book for her to read.