Xanthir
I'm going to have to back Dathu on this. Perfection is real, it's possible. The problem that often occurs when you ask if something is perfect is that you don't really know what it is that you're asking about! ^_^ The problem of definitions is the most basic problem of philosophy, imo.
Not everything can be perfect, though. Perfection is a very shy quality.
From what I have seen and heard so far I will have to say I still stand my ground when it comes Universal Perfection. It is riddled with so many problems, to the point of making it inplausable.
Personal Perfection, however, might be plausable. After all, you only have to deal with yourself, and judge yourself, thus removing many of the variables that plauge the idea of Universal Perfection.
When a person strives to be perfect, they can higher or lower thier standards as they please, and they have the ability to change, control, and construct thier perception, and preferences.