The spiritual discipline of saying "No"

I need help remembering this.

"The concern-oriented life is ordered and organized from within. And we learn to say No as well as Yes by attending to the guidance of an inner responsibility. Quaker simplicity needs to be expressed not merely in dress and architecture and the height of tombstones but also in the structure of a relatively simplified and coordinated life-program of social responsibilities."

--Thomas Kelly, A Testimony of Devotion, 1941

From Quaker blogger rikomatic.com