Official definition:

 'Happiness is an emotional state characterized by feelings of joy, satisfaction, contentment, and fulfillment. While happiness has many different definitions, it is often described as involving positive emotions and life satisfaction'.' (verywellmind.com) 

In this first lesson, students will be required to introduce a philosopher to the class as well as his views on happiness among the following:

Aristotle, Plato, Socrates, Epicurus, Stuart Mill, Nietzsche

Try taking notes to summarise the following extract on utilitarianism:

‘Utilitarianism, in normative ethics, a tradition stemming from the late 18th- and 19th-century English philosophers and economists Jeremy Bentham and John Stuart Mill according to which an action (or type of action) is right if it tends to promote happiness or pleasure and wrong if it tends to produce unhappiness or pain—not just for the performer of the action but also for everyone else affected by it. Utilitarianism is a species of consequentialism, the general doctrine in ethics that actions (or types of action) should be evaluated on the basis of their consequences. Utilitarianism and other consequentialist theories are in opposition to egoism, the view that each person should pursue his or her own self-interest, even at the expense of others, and to any ethical theory that regards some actions (or types of action) as right or wrong independently of their consequences’

- Britannica.com