Brother Adam also has a couple of nice pieces on simplicity.  In the first he says:

The new year is now launched. The Three Kings have visited the Child, observant Christians are packing away the Christmas decorations, and most new year’s resolutions are facing reality.

So I want to put in a word for a monastic value I want to last beyond its new year’s resolution shelf life for me: Simplicity

Then in the second he says:

Monastic spiritual writers all agree that this is a foundational principle for our life with God. The more you have, the more there will be between you and God.