Hrithik Roshan seems to know the mantra of how to live on forever. The light-eyed superstar, who is holidaying with his sons Hrehaan and Hridhaan in South Africa, shared a picture of his younger son writing his name in the sand. Along with the photograph, Hrithik tweeted, “That won't last my son, the only way to live on forever is to etch your name in other people's hearts. #onlylovelasts.“