We learned that the impossible is possible, so we have to be prepared for the worst.

God in his unending greatness and glory and man in his unending littleness, prepared for the worst but rarely for the best, prepared for the possible but rarely for the impossible.

I think we're well-prepared for the worst possible situation. We're expecting some icy roads in the morning.

This would be a drastic worst-case scenario. Universities are so reliant on part-timers that it would be unlikely to happen. Anyway, part-timers would still be cheaper if universities were to pay them on the same rate as their full-time colleagues.

All things are possible until they are proved impossible and even the impossible may only be so, as of now.

He made the impossible possible.