On the other hand, many say there are immutable facts of life that will preserve the distinctions between the two neighborhoods.

Don't assume that Congress must act instantly, as so many news stories state as if it was an immutable fact.

The scariest part about dying, at least to me, is how it ends: with the immutable fact of no longer existing.

For the men of their world, power was an immutable fact of life.

Only the immutable facts that I have written this and you are reading it remain important in the end.

It is an immutable fact of competitive sports that endurance can be a deciding factor in outcome.

His marriage to another woman, an immutable fact, posed even greater restrictions on their fledgling nuclear romance.

Let me explain the immutable fact, the one that overrides all else.

Some clash between the immutable facts of vanity and time seemed to animate him.

I just don't see how we can change that one immutable fact.