The necessary has never been man's top priority. The passionate pursuit of the nonessential and the extravagant is one of the chief traits of human uniqueness. Unlike other forms of life, man's greatest exertions are made in the pursuit not of necessities but of superfluities.

We do what we must, and call it by the best names.

Make yourself necessary to somebody.

Foul water will quench fire.

Necessity is not an established fact, but rather an interpretation.

Necessity never made a good bargain.

What one has to do usually can be done.

Necessity does everything well.

Buy what thou hast no need of and ere long thou shalt sell thy necessities.

We come into the world laden with the weight of an infinite necessity.