If there are heroics in this show, they lie in Ms. Antonelli's willingness to pursue design down slippery corridors into challenging places like molecular biology and five-dimensional space.
But challenging them all for the slippery grasp of reality prize is that maelstrom of madness, the US House of Representatives.
Just as jurists have challenged the primacy of slippery slope rhetoric, the general public must also have the courage and willingness to engage with argument complexity if progress is to be made and sustained.
Prince, an artist of seemingly endless resources — both musical and material — poses a slippery challenge to any would-be cover band, even one with purely imitative aims.
Baba Rahman, making only his sixth appearance of the season, started his second Champions League game for Chelsea and coped admirably with the slippery challenge posed by Andriy Yarmolenko.
Then came Mr. McLaughlin's "New Blues, Old Bruise," with floating accents that suggested a balloon pulled by the string: a slippery challenge, and no time for reflexive facility.
But that creates its own host of problems, including the challenge of packing slippery bottles and cans, wet with condensation.
But that creates its own host of problems, including the challenge of packing slippery bottles and cans, wet from their own condensation.
He challenged me to a climbing contest, and I slithered up a slippery rock after him.
As sensible as my pal Bruce's "challenge" system for soccer might seem, for me, it's a slippery slope to interminable delays and more commercial breaks.
