Marthe expresses her appreciation for efficiency, recognizing its value. However, she also comments on how too much efficiency can become dull and monotonous, implying that it might diminish the joy or excitement in activities or life. Her words reflect a balance between valuing productivity and seeking moments of spontaneity or interest.
Her statement suggests that while efficiency is admirable, an overemphasis on it can lead to boredom. This highlights the idea that some aspects of life or work may benefit from a more relaxed approach, allowing for enjoyment and variety beyond mere efficiency.