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.
“The one thing that you have that nobody else has is you. Your voice, your mind, your story, your vision. So write and draw and build and play and dance and live as only you can.”
“A man is as old as his arteries and his interests. If he permits his economic, religious, or social arteries to harden, or loses interest in whatever concerns mankind... he will need only six feet of earth.”