Adverb
according to need (physicians use PRN in writing prescriptions)
Source: WordNetSolitude is as needed to the imagination as society is wholesome to the character. James Russell Lowell
If you do a practice and train your attention to hover in the present, then you will build the internal capacity to do that as needed - at will and voluntarily. Daniel Goleman
Composition allows the artist the greatest possible freedom, so that his subjectivity can express itself, to a certain degree, for as long as needed. Piet Mondrian
I'd like to work on having every fourth year become a year in which no laws are made, but the old laws are reviewed, updated, or deleted as needed. That way we won't get endless, obsolete laws piling up on the books. Jesse Ventura
Maybe the answer to Selective Service is to start everyone off in the army and draft them for civilian life as needed. Bill Vaughan
Managers, regardless of salary, should not be allowed to earn or use comp time. They are expected to work as many hours as needed to get the job done - especially at these salary levels. Jodi Rell