To cease to admire is a proof of deterioration.
— Charles Horton Cooley

I think that a man should not live beyond the age when he begins to deteriorate, when the flame that lighted the brightest moment of his life has weakened.
Fidel Castro deteriorates quote

A prison taint was on everything there. The imprisoned air, the imprisoned light, the imprisoned damps, the imprisoned men, were all deteriorated by confinement. As the captive men were faded and haggard, so the iron was rusty, the stone was slimy, the wood was rotten, the air was faint, the light was dim. Like a well, like a vault, like a tomb, the prison had no knowledge of the brightness outside; and would have kept its polluted atmosphere intact, in one of the spice islands of the Indian Ocean.
— Charles Dickens

It's easy to let life deteriorate into making a living instead of making a life. It's not the hours you put in, but what you out into the hours that count. Learn to express rather than impress. Expressing evokes a me too attitude while impressing evokes a so what attitude.
— Jim Rohn

Writing, at its best, is a lonely life. Organizations for writers palliate the writer's loneliness, but I doubt if they improve his writing. He grows in public stature as he sheds his loneliness and often his work deteriorates. For he does his work alone and if he is a good enough writer he must face eternity, or the lack of it, each day.
— deteriorates quotation by Ernest Hemingway