Short answer. No. Section 1 of Rule 2 requires that every ordinary civil action 'must be based on a cause of action.' A general sense of being wronged is not enough — the law requires an identifiable act or omission by the defendant that violated a specific right belonging to you.
What the law says
Every ordinary civil action must be based on a cause of action.
Rule 2, Section 1 — Ordinary civil actions, basis of. Read the full provision →
The foundational requirement
Rule 2 opens with a short but consequential rule: every ordinary civil action must be based on a cause of action. This is the starting point for the entire law of civil pleading — before addressing parties, venue, or the form of a complaint, the Rules first insist that there be a legally recognized basis for going to court at all. A complaint that cannot point to a cause of action has nothing to stand on, regardless of how genuinely aggrieved the plaintiff feels. This threshold binds the plaintiff specifically, since it is the plaintiff's complaint that must show the cause of action; it says nothing, on its own, about what a defendant must plead in an answer, which is governed by separate provisions of the Rules.
Why this threshold exists
Courts exist to resolve legal disputes — disagreements over rights and corresponding violations — not to referee every grievance a person may have. Requiring a cause of action as the basis of an ordinary civil action keeps litigation tied to actual legal injury rather than mere dissatisfaction, moral disapproval, or a desire for vindication with no underlying violated right. It is what separates a viable lawsuit from a complaint a court has no basis to entertain. A court asked to referee mere dissatisfaction, rather than an actual legal wrong, would have no principled way to decide the case at all.
What this means practically for a plaintiff
Before filing, a prospective plaintiff needs to be able to identify, specifically, what right of theirs was violated and by what act or omission of the defendant. That identification is what Rule 2's companion provision calls the cause of action itself. Failing to ground a complaint in one is not a mere technical defect — it goes to whether the action can proceed at all, since Section 1 makes a cause of action the very basis the action is built on. Simply feeling wronged, without being able to point to a specific right that was violated, leaves nothing for a court to adjudicate, however sincere or strongly held that sense of grievance may be.
What happens if the complaint falls short
A complaint that fails to state a cause of action does not automatically end the case forever. It typically exposes the pleading to dismissal or to a motion attacking its sufficiency, but a plaintiff may still be able to cure the defect through amendment before the action is finally dismissed, provided the amendment is made within whatever opportunity the Rules and the court allow for correcting the pleading.