He said if these efforts were not stopped, the North some day would be powerful enough to change the Constitution and end slavery everywhere.

VOA: special.2009.03.26

You know of course that this is absolutely crucial to the study of the law to this day: what are the grounds for understanding the meaning of the Constitution, for example?

你们当然知道,今天这些问题对于法学研究很关键：,比如，理解宪法的,根据是什么？

耶鲁公开课 - 文学理论导论课程节选

Each year we recognize September 17 as Constitution Day and Citizenship Day, to commemorate the signing of the Constitution in Philadelphia in 1787.

WHITEHOUSE: Celebrating Citizenship Day by Welcoming New Americans

Today, September 17, is U.S. Constitution Day.

FORBES: Barack Obama Is No James Madison

It was fitting that the 2012 National Consultation fell during the same week as Constitution and Citizenship Day, which is a week where the federal government and American communities come together to celebrate the ideals that our nation was founded on and reflect on the importance of active citizenship.

WHITEHOUSE: Providing a Sense of Home, Security, and Possibility for Refugees in the United States | The White House