What sunshine is to flowers, smiles are to humanity. These are but trifles, to be sure; but scattered along life's pathway, the good they do is inconceivable.
I think film writing, you're thinking in pictures, and stage writing, you're thinking in dialogue. In film writing, it's also, you only get so many words, so everything has to earn its place in a really economical way. I think for stage writing, you have more leeway.