Use It Or Lose It Quotes by Julian Cope, Richard Bach, Hippocrates, Adrienne Rich, Carolyn Heilbrun, Henry Ford and many others.

Use it or lose it is a cliche because it’s true.
Perspective – Use It or Lose It. If you turned to this page, you’re forgetting that what is going on around you is not reality. Think about that.
That which is used – develops. That which is not used wastes away.
We must use what we have to invent what we desire.
That is the point of quotations. One can use another’s words to be insulting.
Writing is the only profession where nobody considers you ridiculous if you earn no money. Money is like an arm or a leg; use it or lose it.

Yes, in my life, since we must call it so, there were three things, the inability to speak, the inability to be silent, and solitude, that’s what I’ve had to make the best of.
The ability to concentrate and to use time well is everything.
Perspective – Use It or Lose It.
Ranger declined the butterscotch pudding, not wanting to disrupt the consistency of his blood sugar level. I had two puddings and coffee, choosing to keep my pancreas at peak performance. Use it or lose it is my philosophy.
The only use of knowledge of the past is to equip us for the present.
Time-Use it or lose it. Time, like a snowflake, disappears while we’re trying to decide what to do with it. The surest way to be late is to have plenty of time.

Tell your readers to use it or lose it. If you don’t use your muscles, they get weak. If you don’t use your mind it begins to fail.
It is not what we have that will make us a great nation; it is the way in which we use it.