Alexei Panshin said this quote

My paper was a direct discussion and comparison of half-a-dozen ethical systems, concentrating on what seemed to me to be their flaws. I finished by saying that it struck me that all the ethical systems I was discussing were after the fact. That is, that people act as they are disposed to, but they like to feel afterwards that they were *right* and so they invent systems that approve of their dispositions

~ Alexei Panshin

Valuing names as they do, Realists are sparing with them. They are likely to be known only as Joe or Bill or Plato. And they don't smile much. Nominalists have more fun. They are known as Aristotle or Decimus-et-Ultimus Barziza, or as Edward John Barrington Douglas-Scott-Montague, or perhaps by one name in childhood and several others in the course of life. A firm Realist misses out on one of the most satisfying of all human activities -- the assumption of secret identities. A man who has lived and never been someone else has never lived. It is true that occasionally there can be embarrassment in secret identities, but only a Realist will take the whole thing seriously enough to hit you. So have your fun, and avoid Realists.

~ Alexei Panshin

I want to make it clear before we begin that I think your purpose is to learn and mine is to help you to learn, or to make you learn, though I doubt either of you has to be made. I have very little interest in writing out progress reports on you, or sticking to form charts, or anything else that interferes with our basic purposes. If there is anything you want to learn and have the necessary background to handle, I'll be ready to help you whether or not it is something that formally falls among the things I'm supposed to teach you. If you don't have the background, I'll help you get it. In return, I want you to do something for me. It's been many years since I was last a tutor, so I expect you to point out to me when I fail to observe some ritual that Mr. Quince holds essential. Fair enough?

~ Alexei Panshin

Night is irregular. What is not done in the daytime becomes possible at night: murder and sex and thought. Simple men are driven to early beds by tomorrow's daytime demands and by fear of the dark, and never dream of the irregular world outside. And all the while, a viscount and a spaceport baggage boy might be passing the night rolling bok ball in the city park. That's more than unusual -- that is irregular.

~ Alexei Panshin