The quote “A street in Constantinople is a picture which one ought to see once-not oftener.” suggests that the experience of visiting a street in Constantinople (modern-day Istanbul) is so unique and impactful that it only needs to be experienced once. The implication is that the sights, sounds, and overall atmosphere are so overwhelming or intense that repeated exposure might diminish the initial awe or fascination. It could also imply that the experience is so chaotic or disorienting that once is enough.

Applying this idea to today’s world or personal development, it can be interpreted in several ways. For instance, it might suggest the value of stepping out of one’s comfort zone to experience something completely different, even if it’s challenging or uncomfortable. It’s through these unique experiences that we learn and grow the most.

Alternatively, it could be seen as a caution against overexposure to intense or chaotic environments, which might lead to desensitization or burnout. In today’s fast-paced, information-saturated world, it’s easy to feel overwhelmed by the constant influx of stimuli. Sometimes, it’s more beneficial to take a step back and limit our exposure to such environments.

Lastly, it could also suggest the importance of appreciating unique experiences for what they are, without feeling the need to repeat them. In a world where we often chase after novelty or constantly seek out new experiences, it’s a reminder to savor the moments and experiences that truly impact us.