It was a truism that all civilisations were basically neurotic until they made contact with everybody else and found their place within the ever-chan… - Iain Banks

The point is," Ziller said, "that having carefully constructed their paradise from first principles to remove all credible motives for conflict amongst themselves and all natural threats...Well, almost all natural threats, these people then find their lives are so hollow they have to recreate false versions of just the sort of terrors untold generations of their ancestors spend their existences attempting to conquer.

Stick to the plan. Not just obey orders. If you were being asked to do something according to a plan, then the way the Culture saw it, you should have had at least some say in what that plan actually was. And if circumstances changed during the course of trying to follow that plan then you were expected to have the initiative and the judgment to alter the plan and act accordingly. You didn’t keep on blindly obeying orders when, due to an alteration in context, the orders were in obvious contradiction to the attainment of whatever goal it was you were pursuing, or when they violated either common sense or common decency. You were still responsible, in other words.

You can draw the blinds in a brothel, but people still know what you’re doing.