Read the passage. what we obtain too cheap, we esteem too lightly; —'tis dearness only that gives every thing its value. heaven knows how to set a proper price upon its goods; and it would be strange indeed, if so celestial an article as freedom should not be highly rated. what is the main idea thomas paine was conveying in this excerpt? people must find easier ways to obtain freedom and justice. we overvalue the principle of freedom and must reconsider its worth. freedom is costly, but anything truly worthwhile comes at a high price. certain principles are timeless and will develop on their own.

Before they can be published, scientific papers must be peer-reviewed. this means that: a) some other scientific experts read the papers and guarantee that they are true. b) some other scientific experts read the papers and provide quality control by eliminating many mistakes. c) an editor reads the papers, to make sure that all the semicolons are in the correct places. d) everyone in the world is given the opportunity to comment on the papers through a specially maintainedblog. e) government bureaucrats read the papers, to be sure that the papers do not insult the political positions ofthe current officeholders.