Sometimes I'll hear a phrase or a word and write it down in my little black notebook (a writer's best mate), then come back to it and work a plot around it.
“Photography does not create eternity, as art does; it embalms time, rescuing it simply from its proper corruption.”
“Gratitude is one of those things that cannot be bought. It must be born with men, or else all the obligations in the world will not create it.”