Sir David Attenborough: 'I couldn't film people having sex' "Having done a lot of programmes on animals, obviously at first you think, 'Why don't we do one on human beings?'," he said, according to the Sun. I don't think about how old I am in an objective way. I do in a subjective way - and subjectively I'm about 27!" he said. I can still see, hear, think and remember, so what's so different? Answer: My legs don't work as well as they did. And I can't climb trees the way I used to! Sir David, whose wife Jane died in 1997, said he tried to avoid showing his emotions and never aspired to celebrity status. "I wouldn't go around expressing my love to the general public in a big way," he added. The love you express is between one person and another person. Whether it's sexual love or family love, you don't go around spreading it. The BBC will celebrate the work of Sir David to mark his 60 years in the business this year.