What does office calligraphy usually write?

Four-character calligraphy: "All rivers run into the sea", "Quiet and far-reaching", "Benevolence is like water", "Virtue carries things" and "Heaven rewards diligence" famous sayings and epigrams: "A gentleman who is good at self-improvement is a gentleman who is good at carrying things", "Be cautious from beginning to end, there will be no failure", "Diligent in playing and barren" and "All rivers run into the sea are the Great Wall. Poetry and calligraphy: Qinyuanchun Snow, Qinyuanchun Changsha, Looking at the Sea, Nostalgia at Chibi, Water Transfer to Jinggangshan, Entering Wine, etc. "