1.   And we take it for granted that in repressive governments words are slippery things.

2.   As with most whose lives are a performance, his sense of his own identity is a slippery thing.

3.   But it is a fluid and slippery thing, more like mercury than gold.

4.   I am surrounded by snow heading into deepest Maine, but the only thing slippery on the road is sand left over from taming said snow.

5.   Slippery things, these statistics.

6.   The danger, of course, aside from flying down a snow-slick hill with long slippery things on your feet, is all too clear.