“If the words 'life, liberty, and the pursuit of happiness' don't include the right to experiment with your own consciousness, then the Declaration of Independence isn't worth the hemp it was written on.”
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Terence McKenna 111
American ethnobotanist 1946–2000Related quotes

Interview with Steve Harvey, quoted in "Clinton confuses Constitution with Declaration of Independence in gun pitch" http://www.foxnews.com/politics/2016/02/25/clinton-confuses-constitution-with-declaration-independence-in-gun-pitch.html, FoxNews.com (25 February 2016)
Presidential campaign (April 12, 2015 – 2016)

2000s, Interview with Peter Robinson (2009)

Rep. Steve King: Protecting the Unborn Reaffirms Jefferson’s Truths http://www.breitbart.com/big-government/2017/11/01/exclusive-rep-steve-king-protecting-the-unborn-reaffirms-jeffersons-truths/ (November 1, 2017)

Republican Presidential Debate, 2007-10-21, quoted in [The Republican Debate on Fox News Channel, 2007-10-21, The New York Times, http://www.nytimes.com/2007/10/21/us/politics/21debate-transcript.html?pagewanted=9, 2011-03-01]
asked his opinion on Mayor Rudolph Giuliani's position to do nothing to change the laws that keep abortion legal
Republican Debates

Those are undeniable truths.
Vietnamese Proclamation of Independence (2 September 1945), Ho Chi Minh, Selected Works (1960-1962), Vol. 3, pp. 17-21

In Richmond, Virginia (April 4, 1865), as quoted in Recollected Words of Abraham Lincoln http://web.archive.org/web/20130517052731/http://mrlincolnandfreedom.org/inside.asp?ID=84&subjectID=3 (1996), by Don Edward Fehrenbacher and Virginia Fehrenbacher, editor, p. 257
1860s, Tour of Richmond (1865)
Context: In reference to you, colored people, let me say God has made you free. Although you have been deprived of your God-given rights by your so-called masters, you are now as free as I am, and if those that claim to be your superiors do not know that you are free, take the sword and bayonet and teach them that you are; for God created all men free, giving to each the same rights of life, liberty, and the pursuit of happiness.