Being individual beings, we find it really difficult to put ourselves in the shoes of other individuals; and even if we feel like we're gifted at being sympathetic - or even empathetic - we likely don't maintain a perpetual state of being that is accompanied by a constant burden for others and how they feel or how they would react to our actions. And thus, our principle:
One way that we can find victory over our common, everyday struggles is to remember that we don't "do life" on our own - but in community. Every action affects the whole - no matter how small.
It's a simple enough statement, but it's much harder to practice. One thing that I've been trying to do to help reshape my worldview to reflect more of a communal living-type of attitude is to simply think about what my friends and family are doing while I am washing the dishes, hanging laundry on the clothes line, or playing with my son.
So there you have it. That's one thing I'm working on in my own life; and, by grace, hopefully it's one area that will improve in this 29th year of my life.