You’re reading Signal vs. Noise, a publication about the web by 37signals since 1999.

Great line.

Thanks especially for the honest attribution. Far better this than to become the next authoritative source for a Wikipedia article on Churchill quotes.

“La difference entre la théorie et la pratique, c’est qu’en théorie, il n’y en a pas”—works well in french and translates to: “The difference between theory and pratice, it’s that in theory, there’s none”.

To that I reply: “There is nothing more practical than a good theory.”—Kurt Lewin

I always knew this as Yogi Berra-ism.

I know this other quote:

In theory, theory and practice are the same. But in practice, they are not.

On a similiar note:

“The difference between theory and practice is greater in practice than in theory”

This is such a cheap slander against theory. Theory done well is intensely aware of how different it is from practice, and that’s precisely why theory is so hard to do well.