"The negative is comparable to the composer’s score and the print to its performance." Ansel Adams.
It seems like Ansel Adams is trying to tell us that if we take pictures, but don't share them, so others can enjoy their beauty, it's like having beautiful music that never gets played. So, don't just leave those wonderful photos on your hard drive, share them with others, so they can enjoy the beauty that you saw when you took the picture.
Enjoy your day!