The relevant part of the ...

The relevant part of the First Amendment here prohibits the making of any law, quote, \
The relevant part of the First Amendment here prohibits the making of any law, quote, "abridging the freedom of speech." And it's pretty well-established that speech comes in many forms.
 Laura Sydell

More phrases

All the great things are simple, and many can be expressed in a single word: freedom, justice, honor, duty, mercy, hope.
I know but one freedom and that is the freedom of the mind.
 Antoine de Saint-Exupéry
Freedom is not worth having if it does not connote freedom to err.
The amount of happiness that you have depends on the amount of freedom you have in your heart.
 Thích Nhất Hạnh
Without freedom of thought, there can be no such thing as wisdom - and no such thing as public liberty without freedom of speech.

Quotes from the same author

In many ways, Apple CEO Tim Cook has been saying that and more for many years. He's said you don't have to choose between doing good and doing well. But only a few dozen people were lined up outside the Apple Store in San Francisco. That's nothing compared to the hundreds and thousands that line up for new products. Cook is taking a gamble here.
 Laura Sydell
[Eric]Goldman [a professor at Santa Clara University School of Law] says back in the 1990s, courts began to confront the question of whether software code is a form of speech. Goldman says the answer to that question came in a case called Bernstein v. U.S. Department of Justice. Student Daniel Bernstein who created an encryption software called Snuffle. He wanted to put it on the Internet. The government tried to prevent him, using a law meant to stop the export of firearms and munitions. Goldman says the student argued his code was a form of speech.
 Laura Sydell