One of the major problems encountered in time travel is not that of accidentally becoming your own father or mother. There is no problem involved in becoming your own father or mother that a broadminded and well-adjusted family can't cope with.

I tend to get very suspicious of anything that thinks it's art while it's being created.

Protect me from knowing what I don't need to know. Protect me from even knowing that there are things to know that I don't know. Protect me from knowing that I decided not to know about the things that I decided not to know about. Amen. [...] Lord, lord, lord. Protect me from the consequences of the above prayer.

How do you feel?" he asked him. "Like a military academy," said Arthur. "Bits of me keep on passing out.

It is most gratifying," it said, "that your enthusiasm for our planet continues unabated, and so we would like to assure you that the guided missiles currently converging with your ship are part of a special service we extend to all of our most enthusiastic clients, and the fully armed nuclear warheads are of course merely a courtesy detail. We look forward to your custom in future lives ... thank you.

You come to me for advice, but you can't cope with anything you don't recognize. Hmmm. So we'll have to tell you something you already know but make it sound like news, eh Well, business as usual , I suppose.

I begged her, 'Please don't leave me stranded in the middle of some primitive zarking forest with no medical help and a head injury. I could be in serious trouble and so could she.'" "What did she say?" "She hit me on the head with the rock again," Ford responded curtly. "I think i can confirm that was my daughter." "Sweet kid." "You have to get to know her," said Arthur. "She eases up, does she?" "No, but you get a better sense of when to duck.