air." Jack scowled. His practice had really paid off—his…

Fearlessness is like a muscle. I know from my own life that the more I exercise it the more natural it becomes to not…

— Arianna Huffington

Belief in ourself is like a muscle - it is strengthened by constant and careful use.

— Catherine DeVrye

Giving is like a muscle. To be strong, you have to exercise it, and to grow as a person, giving is the exercise. You…

— Zig Ziglar

The imagination is like a muscle: it strengthens through use.

— John Kao

Determination is like a muscle. If you do not use it regularly, it fades away.

— Lynn Jennings

Essentially, your voice is an instrument; it's a muscle, and you have to treat it like a muscle, and so you have to work…

— Kevin Spacey

Positivity is like a muscle: keep exercising it, and it becomes a habit.

— Natalie Massenet

“Our brains are like a muscle, Desmond: they become conditioned to the strain they must endure. We are an exceptionally adaptive species. We change…

— A.G. Riddle

Some ladies like muscle.

— Phil Heath

I had to learn about how to use my voice as an instrument, like a muscle in my body when I dance. I had…

— Francesca Hayward

“Willpower is like a muscle. The more you train it, the stronger it becomes. Similarly, the less use it gets, the weaker it gets.”

— Kerry Gene

“The mind is like any other muscle in your body. Use it or lose it.”

— Robin Sharma

“Creativity is like a muscle; you must exercise it daily or it atrophies.”

— Pearl Zhu

“Imagination is like muscle. If you don't exercise it, it shrinks.”

— Tim Campbell

“Make time to write every day. The writing muscle is like any other muscle; the more you exercise it, the stronger it becomes.”

— Judy Penz Sheluk