Just Like Fish

So as I'm plodding through day-to-day existence my mind is weighed down: should sheets match the comforter? did I just hit that person with my car? sugar or splenda? But today I made room in my tin-trap brain for something else, a small space, but something else: "Only man is capable of engaging in a bloody battle for the sole purpose of demonstrating that he has contempt for his own life, that he is something more than a complicated machine or a 'slave to his passion,' in short, that he has a specifically human dignity because he is free."
How I can get my work done when this is what I think about? (This definitely helps....)