Leander Paes, who won the Wimbledon mixed doubles title with Martina Hingis, said he was serious about representing India and insisted winning was all about hard work and age had nothing to do with it. The 42-year-old, who won his 16th Grand Slam, said he continued to learn everyday from people around him and said his daughter was his biggest teacher. Paes also hailed Hingis, who won her second Wimbledon title in two days – she had earlier won the doubles final with Sania Mirza.