Strange and mysterious things, though, aren't they -...

Strange and mysterious things, though, aren't they - earthquakes? We take it for granted that the earth beneath our feet is solid and stationary. We even talk about people being 'down to earth' or having their feet firmly planted on the ground. But suddenly one day we see that it isn't true. The earth, the boulders, that are supposed to be solid, all of a sudden turn as mushy as liquid - From the short story "Thailand