This quote by Robert Louis Stevenson suggests that the world is far more complex and diverse than can be encapsulated by the English language, or any language for that matter. It implies that the world’s design and creation happened independently of human languages, and therefore, its complexity and richness can’t be fully captured or understood through the lens of a single language.

The "different design" referred to in the quote suggests the vastness and diversity of the world, which includes not just the physical environment, but also the myriad of cultures, perspectives, and experiences of all living beings. The English language, while broad and nuanced, is still a human construct with its own limitations. It might not have the capacity to fully express or comprehend the entirety of the world’s design.

In today’s globalized world, this quote could be a reminder of the importance of cultural and linguistic diversity. It underlines the idea that no single language or culture holds the monopoly on knowledge or understanding. We should remain open to different perspectives, experiences, and ways of knowing that come from diverse cultures and languages.

In terms of personal development, this quote could inspire us to broaden our horizons and step out of our comfort zones. It encourages us to learn new languages, immerse ourselves in different cultures, and seek understanding beyond our own limited perspectives. This can lead to a richer, more nuanced understanding of the world and our place in it. It also fosters empathy, as we begin to appreciate the diversity and complexity of human experiences and perspectives. This can be particularly valuable in our increasingly interconnected and multicultural world.