Given a text, write a compressed version of it in a single sentence.

Q: True, the Gettysburg Address was not legally binding, but preambles are never meant to have the status of positive law. They are designed to explain why it is necessary for the government to bind itself to certain objectives.

A: The Gettysburg Address wasn't legally binding, but preambles aren't meant to have positive law status, but rather to explain why its necessary government to bind itself.
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Q: There is no gainsaying that Safire is one of the most influential writers on contemporary English, and it is essential that his books be in the libraries of all who are interested in the subject, regardless of their alignment with his opinions.

A: Not sure Safire is one of the most influential writers on English, it is essential his books be in libraries for those interested
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Q: Longabaugh noted one matching effect that persisted throughout the post-treatment period in Project MATCH. Clients with high trait anger, who were therefore likely to resist directive interventions, were more successful with a motivational enhancement intervention.

A:
One effect that persisted through post-treatment in Project MATCH. Those with high trait anger, who were likely to resist interventions, were more successful with motivational enhancement.
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