It is important that we know where we come from, because if you do not know where you come from, then you don't know where you are, and if you don't … - Terry Pratchett

We are here and it is now. The way I see it is, after that, everything tends towards guesswork.

Something Vimes had learned as a young guard drifted up from memory. If you have to look along the shaft of an arrow from the wrong end, if a man has you entirely at his mercy, then hope like hell that man is an evil man. Because the evil like power, power over people, and they want to see you in fear. They want you to know you're going to die. So they'll talk. They'll gloat.

They'll watch you squirm. They'll put off the moment of murder like another man will put off a good cigar.

So hope like hell your captor is an evil man. A good man will kill you with hardly a word.

'Well ... welcome. My house is your house', his brow suddenly furrowed and he looked worried, 'although only in a metaphorical sense, you understand, because I would not, much as I always admired your straightforward approach, and indeed your forthright stance, actually give you my house, it being the only house I have, and therefore the term is being extended in an, as it were, gratuitous fashion —'