I don't think necessity is the mother of invention - invention, in my opinion, arises directly from idleness, possibly also from laziness. To save oneself trouble.
Oh, if only I did nothing simply as a result of laziness.
Big business can’t prosper without small business to supply its needs and buy its products. Labor can’t prosper so long as capital lies idle. Capital can’t prosper while labor is unemployed.
A life of leisure and a life of laziness are two different things.
Change is hard because people wear themselves out. And that’s the second surprise about change: What looks like laziness is often exhaustion.
Switch: How to Change Things When Change Is Hard (2010)
People who throw kisses are hopelessly lazy.
There art two cardinal sins from which all others spring Impatience and Laziness.
Failure is not the only punishment for laziness; there is also the success of others.
Laziness is nothing more than the habit of resting before you get tired.
For Satan finds some mischief still For idle hands to do.