The emergence of leisure has been mainly seen as part of the process of modernization. We are used to see leisure as the counterpart or as a reward of work, as the consequence of the regular alternation of work and leisure, a product of industrial capitalism. As soon as the expansion of leisure and mass leisure became to be seen as tied to the rise of consumer society, leisure itself could be understood either as a 'non-productive conception of time' (Th. Veblen) or criticized as a 'creature of the market' and a 'forced activity' (The Frankfurt School). Besides the two terms of this opposition between 'work' and 'leisure', it is important to consider a third one: 'idleness'. The term imposed itself and soon functioned as an alternative to the modern concept of 'leisure'. The article discusses the argumentative potentials of the notion in the writings of B. Russell, R.L. Stevenson and K. Capek.