Summary

Portrait of David Josiah Brewer David Josiah Brewer Fairbank v. United States — Opinion of the Court

It can, for the purposes of revenue, receive just as much as though it placed a duty directly upon the articles, and it can just as fully restrict the free exportation which was one of the purposes of the Constitution.
The power to tax is the power to destroy. And that power can be exercised, not only by a tax directly on articles exported, but also and equally by a stamp duty on bills of lading evidencing the export. To the suggestion that a stamp duty is necessarily small in amount, we reply that the fact is to the contrary.
Source: Wikisource

Portrait of David Josiah Brewer David Josiah Brewer Fairbank v. United States — Opinion of the Court

The constitutionality of an act of Congress is a matter always requiring the most careful consideration. The presumptions are in favor of constitutionality, and before a court is justified in holding that the legislative power has been exercised beyond the limits granted, or in conflict with restrictions imposed by the fundamental law, the excess or conflict should be clear. And yet, when clear, if written constitutions are to be regarded as of value, the duty of the court is plain to uphold the Constitution, although in so doing the legislative enactment falls.
Source: Wikisource

Get perspective with Kwize: daily news enlightened by great literature