I just came across this and found I couldn’t agree more. When you think about it, writing is one of the greatest human inventions of all, letting us communicate not just with the people immediately around us, but across vast geographical and temporal distances. It frees us to express ourselves with the rest of humanity.

This Sagan quote may refer specifically to books, but I would add that, today, the internet has given writing an even greater power. On the web writing can reach unimaginable numbers of people in an instant, so we can convey to others what we think and feel like never before.