EudaimoniaEudaimonia (Greek: εὐδαιμονία eu̯dai̯moníaː; juːdɪˈmoʊniə), sometimes anglicized as eudaemonia or eudemonia, is a Greek word literally translating to the state or condition of 'good spirit', and which is commonly translated as 'happiness' or 'welfare'. In works of Aristotle, eudaimonia was the term for the highest human good in older Greek tradition. It is the aim of practical philosophy-prudence, including ethics and political philosophy, to consider and experience what this state really is, and how it can be achieved.
Scepticisme (philosophie)thumb|350px|Pyrrhon impassible dans la tempête. Le scepticisme (du grec , « qui examine »), aussi appelé pyrrhonisme, est à l'origine une philosophie et une méthode grecque antique qui compare et oppose toutes choses afin d'atteindre la tranquillité (, « ataraxie ») de l'âme (). Le sceptique pyrrhonien dit que rien n'est vrai ni faux, ni vrai et faux à la fois, et pas même cette dernière phrase car elle s'oppose à elle-même. Le scepticisme a eu une grande influence sur Michel de Montaigne qui l'avait largement adopté.
Philosophical skepticismPhilosophical skepticism (UK spelling: scepticism; from Greek σκέψις skepsis, "inquiry") is a family of philosophical views that question the possibility of knowledge. It differs from other forms of skepticism in that it even rejects very plausible knowledge claims that belong to basic common sense. Philosophical skeptics are often classified into two general categories: Those who deny all possibility of knowledge, and those who advocate for the suspension of judgment due to the inadequacy of evidence.