Thanatophobia, an extreme fear of the dying process.

"Waiting for the moment between thought & no thought;
breath & the last of breath;
does the dark unfold like a hand, like a door -
or does nothing come at all?"
D. D. Black

Samuel Clemens

"I do not fear death. I had been dead for billions and billions of years before I was born, and had not suffered the slightest inconvenience from it."
Mark Twain

Harold S. Kushner

"I am convinced that it is not the fear of death, of our lives ending, that haunts our sleep so much as the fear that as far as the world is concerned, we might as well never have lived."
Harold S. Kushner

Dvaid Sarnoff

"We cannot banish dangers, but we can banish fears. We must not demean life by standing in awe of death."
David Sarnoff

Jackson Browne

"And the high ideals and the promise
You once dressed the future in
Are dancing in the embers with the wind
Time running out time running out
For the fool still asking what his life is about
Time running out time running out"
Jackson Browne

Steve Jobs

"Remembering that I'll be dead soon is the most important tool I've ever encountered to help me make the big choices in life. Because almost everything - all external expectations, all pride, all fear of embarrassment or failure - these things just fall away in the face of death, leaving only what is truly important."
Steve Jobs

Daniel Kahneman

"I discovered after making the decision - (to arrange his death) - that I am not afraid of not existing, and that I think of death as going to sleep and not waking up. The last period has truly not been hard, except for witnessing the pain I caused others."
Daniel Kahneman

Nathaniel Hawthorn

"Death should take me while I am in the mood."
Nathaniel Hawthorne