Experience Over Intelligence: The Timeless Wisdom of a Spanish Proverb
A well-known Spanish proverb offers a powerful lesson for investors and professionals alike. It states, “The devil knows more because he is old, not because he is the devil.” This simple saying carries deep meaning about the true source of wisdom and judgment.
The Value of Lived Experience
The proverb argues that experience, gained over time, is more valuable than raw intelligence. It suggests that deep understanding comes from encountering real-world situations, making mistakes, and learning from them. An older person, or an experienced investor, has seen market cycles, economic downturns, and periods of rapid growth. This history provides a context that pure analytical skill cannot replicate.
For example, a brilliant young analyst with a top education may understand complex financial models. However, an investor who lived through the 2008 financial crisis or the dot-com bubble has a visceral understanding of market panic and euphoria. That veteran has felt the emotional weight of major losses and the patience required for true gains. This is the “devil’s” knowledge—it is earned, not given.
Why Mistakes and Time Are Critical Teachers
The real learning highlighted by this saying comes from error and reflection. Intelligent people can avoid some mistakes, but no one avoids them all. The key is what happens after. Each misstep, when analyzed and understood, becomes a piece of practical wisdom. This process cannot be rushed. It requires the passage of time to see the long-term consequences of decisions.
In the world of investing, this translates to the importance of a long-term perspective. A trader might be intelligent enough to score quick wins. But a seasoned portfolio manager knows that sustainable strategy is built on lessons learned from decades of observing how companies, industries, and economies actually evolve. They know which risks are worth taking and which signals are mere noise, because they have seen it before.
A Message for the New Generation
A core message of this proverb is directed at the young and the new. It is a call to listen and to value the hard-earned insights of those who have come before. This does not mean blindly following old ways. It means respecting that experience provides a filter for new information. A young entrepreneur with a disruptive idea should still seek the counsel of those who have built companies, navigated regulations, and managed teams through difficult periods.
True wisdom, as the saying teaches, is a slow accumulation. It is not found solely in books, degrees, or high IQ scores. These are tools. The wisdom itself is built through the application of those tools in the unpredictable school of life and markets. Intelligence might help you pass a test, but experience teaches you which tests are actually worth taking.
For investors, this is a reminder to value historical market data, economic patterns, and the seasoned judgment of professionals who emphasize process over prediction. In both life and finance, the old “devil” knows more not by magic, but by having been there, done that, and learned the lesson.
