We all want a fairy tale ending, everlasting happiness, in fact there is no more one important question within philosophy than that of the concept of happiness. It is the defining question of ethics. The crucial question that Socrates asked that of, how should I live? This question has been at the forefront of philosophical inquiry for the subsequent 2400 years, however despite this, constant deliberation has thus far produced no definitive answers. How should one live one’s life to maximise happiness? Throughout this project I wish to delve into some of the major theories of happiness to see if I can adopt any of them to make my life the happiest it can be. The mayor theorists I shall be tackling are: Aristotle – Believed happiness was achieved through fulfilment of the 3 parts of the soul. Socrates – Believed happiness is entwined with virtue. Plato – Believed happiness is achieved through acquiring the virtues and contemplation of the world of forms and the form of the good Epicurus – Believed happiness is achieved through moderate satisfaction, avoidance of pain and pleasure being the highest good Kant – one should always obey the moral law however living a virtuous life does not necessarily lead to happiness. Nietzsche – Happiness is achieved through going for what one truly desires. Pain is a necessary part of life – one cannot experience true happiness if one has not suffered. As well as looking at these philosophers I also wish to try to answer the following questions: What is Happiness? Why is it so important? How has happiness changed in the modern age? Is there one universal happiness that we all strive for? Finally I will look at an investigation into the youth of today and see what ultimately their philosophy behind happiness is.