He is at the peak of stardom with critical acclaim and box office numbers on his side, but megastar Amitabh Bachchan, who has also earned respect in his over four decade-long career, says he still has a long way to go, for which he feels the need to put in more hard work.

The 72-year-old, who has delivered acclaimed performances in movies like `Deewaar`, `Agneepath`, `Sholay`, `Black` and `Paa`, blogged about his thoughts.

`Need to sleep...need to get more energy...need to work harder...need to be there with all for all by all,` shared Big B, who was accorded with Padma Vibhushan, one of the highest civilian awards of the country, earlier this year.

The actor is balancing his work slate between the big and the small screen. He will be seen in a "never-seen-before" avatar in upcoming TV show `Aaj Ki Raat Hai Zindagi`, and will regale movie-goers with `Wazir` later this year.

Meanwhile, Amitabh will inaugurate two new safari buses at the Sanjay Gandhi National Park here as part of his first engagement as Maharashtra's tiger ambassador.