This is an invariable rule and has no personal application, of course.

We have, then, a certain invariable rule whenever the Scriptures speak plainly.

Is that an invariable rule?-In my experience it has been the rule.

The wrong man first is the invariable rule of the New York police.

Gregory made it an invariable rule to act at the outset with gentleness.

That is my invariable rule, and I never depart from it.

So I've adopted one invariable rule: to laugh and be gay.

No invariable rule can be laid down for perfect germination.

Shops below, apartments above, this is the nearly invariable rule.

I have made one invariable rule-everyother is flexible.

For this reason they make it an invariable rule never to whistle under a rock.

Then, as the invariable rule of war, there came the hundredth time when the unexpected happened.

The first, and invariable rule, is that the woman always bows first when meeting men acquaintances.

She said she never allowed her "roomers" to get behindhand-itwas her invariable rule.

I have never known this to fail, and it may be set down as an invariable rule.

This was, I think, the invariable rule.