I challenge that loose-assed prick, otherwise known as Moss, to a fight.

Teachers can change lives with just the right mix of chalk and challenges.

The biggest challenge is how to affect public attitudes and make people care.

The challenge for capitalism is that the things that breed trust also breed the environment for fraud.

Trusting your individual uniqueness challenges you to lay yourself open.

My biggest challenge every day is to be a great mother and a great businesswoman.

“You hold a duty to yourself to ensure you are constantly feeling challenged.”

The space shuttle is a better and safer rocket than it was before the Challenger accident.

I'm a competitive person and I love the challenge of mastering new things.

Juggling being a mom and an entertainer is a challenge I face every day.