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Computers, I've loved them since 
I've been able to afford to have my own,

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back in the beginning of the
modern home computer era - in the 1980s.

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And I've owned a large number
of different kinds of computers

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and I've expressed, publicly, loyalty
to this kind or that kind,

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but recently my mind has turned,
as many people's have,

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to this whole business of free software.

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If you have, I don't know,
plumbing in your house,

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it may be, that you 
don't understand it.

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But you may have a friend
who does and they may suggest

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you move a pipe here, or
a stopcock there

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or a valve somewhere else

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and you're not breaking the law
by doing that, are you?

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Because it's your house
and you own the plumbing.

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You can't do that 
with your computer.

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You can't actually really fiddle 
with your operating system,

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And you certainly can't share any ideas 
you have about your operating system

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with other people.

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Because Apple and Microsoft, who run the 
two most popular operating systems,

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are very firm about the fact that they 
own that.

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And no one else can have anything to do 
with it.

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Now this may seem natural to you, 
why shouldn't they?

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But actually,

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why can't you do with it what you like?

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And why can't the community, at large,

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alter, and improve, and share?

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That's how science works, after all.

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All knowledge is free and all knowledge 
is shared in good science

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If it isn't, it's bad science and it's a 
kind of tyranny

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And I'm here, as it were, simply to 
remind you

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that GNU and Linux are the twin pillars
of the free software community

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People who believe -and this is the 
important part-

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that software should be free, that 
the using community should be allowed

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to adapt it and adopt it, to change it,
to improve it,

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to spread those improvements around 
the community

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like science.
That's basically what it's saying

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In the same way that good scientists 
share everything, and all knowledge is

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open and free, so it should be with 
an operating system.

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[Trade-free means good practice]