The quote, “If only I had known, I should have become a watchmaker,” is a reflection of regret and a longing for simplicity. It suggests that the speaker wishes they had chosen a path that was less complicated and more predictable, like the intricate but orderly work of a watchmaker. It’s a lamentation over the unforeseen complexities and challenges that came with the path they chose instead.

In the context of the speaker’s life, this quote could be interpreted as a response to the consequences of their work, which led to the development of nuclear weapons. The speaker might be expressing regret over the destructive use of their scientific discoveries.

The watchmaker analogy also holds significant philosophical implications. It’s often used to illustrate the concept of design in the universe, suggesting that the complex interworking of the universe implies a designer, just as the complex interworking of a watch implies a watchmaker. In this quote, the speaker might be expressing a desire for a life that reflects this kind of order and predictability, rather than the chaos and unpredictability they’ve experienced.

Applying this quote to today’s world, it speaks to the human tendency to long for simpler times, especially when faced with the complexities and challenges of modern life. It also reflects a common sentiment among those who feel overwhelmed by the consequences of their actions or decisions, wishing they could go back and choose a different, simpler path.

In terms of personal development, this quote serves as a reminder of the importance of understanding the potential consequences of our decisions. It encourages us to consider not only the immediate benefits of our choices, but also the long-term effects they might have on our lives and the world around us. It also suggests that there’s value in simplicity and predictability, and that it’s okay to choose a path that’s less glamorous or ambitious, but more aligned with our personal peace and happiness.