In the late 19th century, the Vanderbilt family controlled one of the largest fortunes in American history. Cornelius Vanderbilt built a transportation empire that reshaped the U.S. economy and accumulated extraordinary wealth.

Yet within a few generations, most of that fortune had disappeared. By the 1970s, when family members gathered for a reunion, there was reportedly not a single millionaire among them.

Financial historians explain it in familiar terms: estate division, market shifts, spending patterns, dilution across heirs. All reasonable explanations.

But the speed of the decline still raises a deeper question: Why do some fortunes endure for centuries, while others evaporate within decades?

The Talmud offers a striking perspective.

In Tractate Kesubos, it recounts the story of the daughter of Nakdimon Ben Guriyon, one of the wealthiest individuals in Jerusalem before the destruction of the Second Temple. After the city’s fall, she was found searching for scraps of barley in donkey dung.

When asked what happened to the wealth, she replied with a proverb: “The salt of money is loss.”

Salt preserves food from decay. Without it, it spoils. So too, she implied, money must be diminished to be preserved.

The Talmud challenges this: her father was known to give charity generously. The answer is sharp and relevant:

• He did not give in proportion to his capacity.
• He gave for honor.

The insight is not about public policy or macroeconomics. It is about the internal stability of wealth.

Money is not self-sustaining. It requires alignment with purpose. When giving is proportional and sincere – not symbolic, not performative – it acts as a stabilizing force. When generosity is minimal relative to capacity, or primarily reputational, the preservation effect is weakened.

We spend significant energy hedging risk: diversification, insurance, legal structuring, succession planning.

The Talmud suggests a different form of risk management.

If you want wealth to endure — across years, across generations — give.

Give meaningfully. Give proportionately. Give without turning generosity into branding.

Sometimes, preservation requires subtraction.