The best-laid plans of mice and men - you know.

But, as you must well know, the best-laid plans etc.

"The world moves too fast for even the best-laid plans to hold up."

But even the best-laid plans have a way of being upset by outside forces.

Why is it my best-laid plans seem to come to mischief?

At first she covered the ground fairly easily and quickly, but, as with even the best-laid plans, things went wrong.

Not to mention the fact that in the theater the best-laid plans almost always change.

I guess no one taught these people that the best-laid plans almost always founder.

But something about the best-laid plans seems to apply here.

It is also clear from the text that war can upset the best-laid plans.