“Like 'real', 'free' is only used to rule out the suggestion of some or all of its recognized antitheses. As 'truth' is not a name of a characteristic of assertions, so 'freedom' is not a name for a characteristic of actions, but the name of a dimension in which actions are assessed.”

From interview with Anshul Chaturvedi

c. 12
Paint Your Dragon (1996)

François Quesnay in letter from M. Alpha to de Quesnay, 1767; cited in: Antony Jay (2010). Lend Me Your Ears: Oxford Dictionary of Political Quotations. p. 253.

National Book Awards, November 2014 https://www.newyorker.com/books/page-turner/national-book-awards-ursula-le-guin
Context: I think hard times are coming, when we will be wanting the voices of writers who can see alternatives to how we live now, and can see through our fear-stricken society and its obsessive technologies, to other ways of being. And even imagine some real grounds for hope. We will need writers who can remember freedom: poets, visionaries—the realists of a larger reality. Right now, I think we need writers who know the difference between production of a market commodity and the practice of an art. The profit motive is often in conflict with the aims of art. We live in capitalism. Its power seems inescapable; so did the divine right of kings. … Power can be resisted and changed by human beings; resistance and change often begin in art, and very often in our art—the art of words. I’ve had a long career and a good one, in good company, and here, at the end of it, I really don’t want to watch American literature get sold down the river.... The name of our beautiful reward is not profit. Its name is freedom.

1990s, Why "Free Software" is better than "Open Source" (1998)
Context: While free software by any other name would give you the same freedom, it makes a big difference which name we use: different words convey different ideas.
In 1998, some of the people in the free software community began using the term "open source software" instead of "free software" to describe what they do. The term "open source" quickly became associated with a different approach, a different philosophy, different values, and even a different criterion for which licenses are acceptable. The Free Software movement and the Open Source movement are today separate movements with different views and goals, although we can and do work together on some practical projects.
The fundamental difference between the two movements is in their values, their ways of looking at the world. For the Open Source movement, the issue of whether software should be open source is a practical question, not an ethical one. As one person put it, "Open source is a development methodology; free software is a social movement." For the Open Source movement, non-free software is a suboptimal solution. For the Free Software movement, non-free software is a social problem and free software is the solution.

Essay of Dramatick Poesie (1668) Full text online http://andromeda.rutgers.edu/~jlynch/Texts/drampoet.html.

Intuitive Thinking as a Spiritual Path. A Philosophy of Freedom (GA 4), Hudson (1894)/1995.

Source: An imitation of life (1950), p. 43 as cited in: Owen Holland (2003) " The first biologically inspired robots http://robotics.cs.tamu.edu/dshell/cs689/papers/holland02first.pdf"