The Right to be Lazy

Paul Lafargue in The Right to be Lazy argued that laziness, combined with human creativity, was an important source of human progress.
He was a Cuban-born French revolutionary Marxist, which sounds quite busy.

Robert Louis Stevenson in An Apology for Idlers wrote, 'There is a sort of dead-alive, hackneyed people about, who are scarcely conscious of living except in the exercise of some conventional occupation. (…) It is no good speaking to such folk: they cannot be idle, their nature is not generous enough; and they pass those hours in a sort of coma, which are not dedicated to furious moiling in the gold-mill. When they do not require to go to the office, when they are not hungry and have no mind to drink, the whole breathing world is a blank to them.' 

I need time to think about it. 

Oh, I don't have any...