Now I know that if I'm in a fight or a big argument with executives or the studio or whoever, and it's getting to a point where it's starting to get bad, I don't have to have the fear of, "Am I strong enough to see this through? Would I really make a stand here? Would I really quit over this issue?" And I know in my heart that there is a place where I would walk away. I don't have to make it about my ego. I don't have to make it about whether I'm being strong enough or tough enough.

And your typical TV series, you've got your police station, your apartment, the hospital, the starship, or whatever it is, and you're constantly going back to those sets and shooting, which saves you a lot of money and time. You can do that faster because you become really familiar with it and you become really good at it.

I think people are screw-ups, and even our greatest heroes are deeply flawed human beings. People make bad decisions for all the wrong reasons, and then somehow they'll do the right thing, and then somehow they'll save somebody, or they'll be compassionate. Horrible people can do wonderful things, and wonderful people can do horrible things.

When Kirk dies it was very emotional and very strange, in the moment and all the way through the process. I'd read it in the script and I'd always be struck by what I'd just done and what we were doing, and that this was my childhood hero and I was writing his death.

The flower inside the fruit that is both its parent and its child. Decadent as ancestors. The portal and that which passes. Nuclear devices activated, and the machine keeps pushing time through the cogs, like paste into strings into paste again, and only the machine keeps using time to make time to make time. And when the machine stops, time was an illusion that we created free will.

As frustrating as it gets, at times, and as frustrating as it is, at times, I don't think I've ever considered doing something else, or not wanted to do it anymore. To me, it's just the greatest job. It's a good fit for who I am and what I want to be.

There were a lot of lessons of production to be learned. On the page, the biggest thing you learn on any TV show is how to write to your cast. You write the show at the beginning with certain voices in your head and you have a way that you think the characters will be, and then you have an actor go out there, and you start watching dailies and episodes. Then, you start realizing what they can do and what they can't do, what they're good at and what they're not so good at, how they say things and what fits in their mouth, and you start tailoring the voice of the show to your cast.