to a hammer, everything looks like a nail

Proverb

 * 1) * 2013, American Express Co. et al. v. Italian Colors Restaurant et al. (U.S. Supreme Court No. 12–133), Justice Kagan dissenting:
 * The Court today mistakes what this case is about. To a hammer, everything looks like a nail. And to a Court bent on diminishing the usefulness of Rule 23, everything looks like a class action, ready to be dismantled.
 * The Court today mistakes what this case is about. To a hammer, everything looks like a nail. And to a Court bent on diminishing the usefulness of Rule 23, everything looks like a class action, ready to be dismantled.