In one of the most brilliant papers in the English language Hume made it clear that what we speak of as 'causality' is nothing more than the phenomenon of repetition. When we mix sulphur with saltpeter and charcoal we always get gunpowder. This is true of every event subsumed by a causal law in other words, everything which can be called scientific knowledge. "It is custom which rules ," Hume said, and in that one sentence undermined both science and philosophy .

If I'd known it was harmless, I'd have killed it myself!

Where there's dope, there's hope!

So books are real to me, too; they link me not just with other minds but with the vision of other minds, what those minds understand and see. I see their worlds as well as I see my own.

But the actual touch of her lingered, inside his heart. That remained. In all the years of his life ahead, the long years without her, with never seeing her or hearing from her or knowing anything about her, if she was alive or happy or dead or what, that touch stayed locked within him, sealed in himself, and never went away. That one touch of her hand.

There exists, for everyone, a sentence - a series of words - that has the power to destroy you. Another sentence exists, another series of words, that could heal you. If you're lucky you will get the second, but you can be certain of getting the first.

Whom the gods notice they destroy.