What is better to write in four-character calligraphy in the office?

Short words should be harmonious and happy. Inspiring, moral and personal. This is especially true for long words. What I want is the sunny scenery in the north, not the gloomy scenery of the Yangtze River flowing eastward, and so on. Hanging pictures in the living room is generally better, and calligraphy is generally used in the study, because if calligraphy is on the sofa wall, sitting down is suspected of retrogression, which is not recommended in home feng shui, but materialists certainly don't have to listen, they can hang anything they want, as long as they are healthy and upward.