One must not always think so much about what one should do, but rather what one should be. Our works do not ennoble us; but we must ennoble our works.
Meister Eckhart (c. 1260-1328?) German theologian, philosopher, mystic [a.k.a. Johannes Eckhart von Hochheim; Eckhart; Eckehart]
Work and Being (14th C.)
Note: I haven't found a text by that name in Eckhart's bibliography, nor this quotation anywhere connected with anything but that title or none at all.
It is from “The Talks of Instruction,” no. 4, “Of the Value of Resignation.” It is translated on p. 489 of the document linked below like this: “Do not think to place holiness in doing; we should place holiness in being, for it is not the works that sanctify us, but we who should sanctify the works.” https://german.yale.edu/sites/default/files/meister-eckhart-maurice-o-c-walshe-bernard-mcginn-the-complete-mystical-works-of-meister-eckhart-the-crossroad-publishing-company-2009.pdf
Thanks! I will update my entry.