Utilitarianism

Utilitarianism is the ethical theory that the right action is whatever produces the greatest good for the greatest number. Simple in principle, profound in implications.

The Core Idea

The Principle of Utility: An action is right insofar as it promotes happiness; wrong insofar as it produces the reverse. Happiness = pleasure and absence of pain (for classical utilitarians) This makes ethics empirical and democratic - everyone counts equally, and we can measure outcomes.

Types of Utilitarianism

Act Utilitarianism

Judge each individual action by its consequences. What will THIS action produce? Problem: Could justify lying, stealing, even murder if consequences are good enough. Also demands constant calculation.

Rule Utilitarianism

Judge actions by whether they follow rules that, if generally followed, would maximize utility. "Would following this rule generally produce good consequences?" Rules like "keep promises" and "do not murder" usually maximize utility.

Preference Utilitarianism

Maximize satisfaction of preferences, not just pleasure. Different people want different things; respect that.

The Felicific Calculus

Bentham proposed measuring pleasure/pain by:

Intensity: How strong?
Duration: How long?
Certainty: How likely?
Propinquity: How soon?
Fecundity: Will it lead to more pleasure?
Purity: Will it lead to pain?
Extent: How many affected?

This makes ethics quasi-scientific (in theory).

Classic Objections

The Justice Problem

Utilitarianism could justify sacrificing innocent minorities for majority benefit. Hang an innocent person to prevent riots? The math might say yes.

The Demandingness Problem

If you should always maximize good, then every dollar you spend on yourself instead of saving lives is wrong. Most effective altruists bite this bullet.

Measuring Happiness

How do we compare pleasures? Is poetry better than push-pin? (Bentham said no; Mill said yes - higher pleasures count more.)

Ignoring Rights

People have rights not to be used as mere means. Utilitarianism might violate these rights when consequences favor it.

Peter Singer and Effective Altruism

Contemporary philosopher Peter Singer applies strict utilitarian reasoning:

We are obligated to help distant strangers if we can do so cheaply
Not helping when we could is morally equivalent to harming
We should give much more than we do to effective charities

This is uncomfortable but hard to refute if you accept utilitarian premises.

Secular Ethics

Utilitarianism is naturally secular:

No divine commands needed - consequences are objective
Evidence-based ethics - we can study what actually improves well-being
Universal scope - everyone counts, not just believers
Progressive - ethics improves as we learn more about flourishing

However, most secular ethicists balance utilitarian thinking with rights, virtues, and fairness.