Below are just a few quotes from poets and authors I found as I trawled through Google one morning. I can relate to them all.
If you have other things in your life—family, friends, good productive day work—these can interact with your writing and the sum will be all the richer. – David Brin.
First find out what your hero wants, then just follow him. – Ray Bradbury
If you are destined to become a writer, you can’t help it. If you can help it, you aren’t destined to become a writer. The frustrations and disappointments, not even to mention the unspeakable loneliness, are too unbearable for anyone who doesn’t have a deep sense of being unable to avoid writing. – Donald Harington
A writer without interest or sympathy for the foibles of his fellow man is not conceivable as a writer. – Joseph Conrad
Begin with an individual, and before you know it you have created a type; begin with a type, and you find you have created – nothing. – F. Scott Fitzgerald
Literature is all, or mostly, about sex. – Anthony Burgess
Rejection slips, or form letters, however tactfully phrased, are lacerations of the soul, if not quite inventions of the devil—but there is no way around them. – Isaac Asimov
Everybody walks past a thousand story ideas every day. The good writers are the ones who see five or six of them. Most people don’t see any. – Orson Scott Card
Finishing a book is just like you took a child out in the back yard and shot it. – Truman Capote
There is one more quote which is from an unknown writer, who says: stories don’t end on the last page any more than they begin on the first.