Justin Murphy, The Time to Withdraw:

One hour of truly focused attention is significantly more valuable than 25 hours of scatter-brained Twitter posting. One hour of focused attention is sometimes sufficient to conceive one original idea, write it down clearly, and do something purposeful with it, such as post it to your blog. The quality of the idea, the quality of the decision about what to do with the idea, and the basic follow-through — all of these are more valuable, and harder than we appreciate.

And…

When you’re in the rhythm of bouncing around between podcasts, Youtube videos, Twitter, and all the rest, the decision to stop in favor of reading and writing is more devilishly difficult than any educated person wants to admit. It is perhaps the most underestimated social harm afflicting the literate classes today, in part because it’s embarrassing to admit it.

Can relate.