A short story is confined to one mood, to which everything in the story pertains. Characters, setting, time, events, are all subject to the mood. And you can try more ephemeral, more fleeting things in a story - you can work more by suggestion - than in a novel. Less is resolved, more is suggested, perhaps.
Eudora WeltyPeople are mostly layers of violence and tenderness wrapped like bulbs, and it is difficult to say what makes them onions or hyacinths.
Eudora WeltyWhen I was a child and the snow fell, my mother always rushed to the kitchen and made snow ice cream and divinity fudge-egg whites, sugar and pecans, mostly. It was a lark then and I always associate divinity fudge with snowstorms.
Eudora WeltyI learned quickly enough when to click the shutter, but what I was becoming aware of more slowly was a story-writer's truth: The thing to wait on, to reach for, is the moment in which people reveal themselves... I learned from my own pictures, one by one, and had to; for I think we are the breakers of our own hearts.
Eudora Welty