A. P. J. Abdul Kalam
A. P. J. Abdul Kalam

To become 'unique,' the challenge is to fight the hardest battle which anyone can imagine until you reach your destination.

A. R. Rahman
A. R. Rahman

The more dollars the studio producers put in, the less freedom we have. If the budget hits $100m, they get scared - they'll take the existing score of a successful movie and expect composers to copy it, like wallpaper. The biggest challenge for any composer in Hollywood is to be as creative as possible within those boundaries.

Aamir Khan
Aamir Khan

For me, acting is not a job. It is something I love. I don't do these things for awards or rewards. I do them because I love challenges.

Aaron Ciechanover
Aaron Ciechanover

Bringing together the unique expertise of researchers from both NYU and the Technion will hopefully enable us to overcome some of the most difficult challenges in treating cancer patients.

Aaron Rodgers
Aaron Rodgers

As you get older, and this is a young man's game, and people say, 'Well, there's no way I can keep up running the way I'm running; there's no way my arm is going to stay as strong as it is.' It's the challenge of trying to stay in my tip-top shape year in and year out so I can keep playing the way I want to play.

Aaron Rodgers
Aaron Rodgers

I think it is all about finding ways to challenge yourself.

Aaron Sanchez
Aaron Sanchez

My biggest challenge is cooking traditional French dishes, which usually require very specific techniques and methods. That's just not my style... I cook from the soul.

Aaron Schock
Aaron Schock

When 'Men's Health' reached out and said, 'Will you be on the 'Today Show' and do a fitness challenge?' I said, 'OK. I'm not showing them anything they don't already know.' But I'm going to take what some would argue is a negative or not substantive and turn it into a substantive thing to hopefully do some good for people.

Aaron Stanford
Aaron Stanford

You have to find it in the moment, and that's one of the challenges of being an actor - especially a film actor - is that you have to maintain these heightened emotions for long periods of time. There's no trick to it. You just have to do.

AB de Villiers
AB de Villiers

Test cricket is the ultimate challenge.