Aristotle differed from Plato in his belief that knowledge can only be ascertained ‘a posteriori’ (from experience). This informed his distinction between four types of causality: material causes, formal causes, efficient causes and final causes. With the final cause (‘telos’) of humanity being ‘eudaimonia’ – loosely translated as ‘flourishing.’ The mind map below sets out different elements of Aristotle’s worldview and should act as a useful starting point for further investigating his Philosophy.