It’s no game.

Discipline doesn’t mean that you make sure you have breakfast at 8 o’clock in the morning and are out of the house at half past. Discipline is that you conceive some thing, and then you decide whether or not it’s worth following through. And if it’s worth following through then you follow it through to its logical conclusion and do it to the best of your ability, whether there are areas in it that are not to one’s liking. You have to go right the way through it, and that’s what I do.

David Bowie, 1975