Secular grace

Allow me to preface this post by stating that I am not trying to start a discussion of religion, or to endorse or oppose anyone's religious beliefs or lack thereof. CHers beliefs are none of my business, and I don't think it's appropriate to discuss them here.

That said, I grew up in a fairly religious family, but we never said grace. I married a man whose family always said grace, and I adopted the practice with him. I've drifted away from religious practices, but I don't want to stop saying grace. Grace is a dignified way to start a meal, better than everyone just digging in. I also believe that appreciating what one has is more conducive to happiness than taking it for granted or always grasping for more.

So, my question is: has anyone adopted a secular form of grace, or does anyone have suggestions on creating one? Certainly, it should include an expression of thanks to the persons who farmed or gardened,bought, prepared, and served the food. Other elements could include a general expression of thanks for the availability of food and a commitment to helping the less fortunate. Any other ideas?