At that time, I had to decide what to do with my children. I said, "Don't send them to English school. They will suffer like me." Starting with my eldest boy, lessons began at home at the age of 3, then kindergarten, two, three years, Nanyang Xiao Xue, then Catholic High, 12 years. For the other children, kindergarten, Nanyang Xiao Xue; the girl, Nanyang Nu Zhong; the boy, Catholic High and National Junior College. For their "A" levels, the two decided to switch to English. My daughter did not want to learn biology in Chinese and then learn to be a doctor using English textbooks. So there are limits. I realised that quickly. I encouraged them but never pressed them to breaking point. They learned Chinese in school, learned English at home, and they also learned Malay. It was not just the teacher teaching them Malay, the cikgu who was teaching in Kampong Jagoh got my son, Hsien Loong, to join a Malay group. I said, "Get him into a Malay group." So, he joined the Kampong Jagoh Wolf Cub Troop. It was a living language, talking to people in Malay, to young boys like him. So it was not just lessons in Malay. He was young, he picked up the rhythm and the accent. He took his "O" levels, never used it. He went into politics, and it came back. But my Chinese, if I lose it, it goes rusty, it is very difficult to get it back.