Don’t eat the seed corn or sell the farm after a storm

Don’t Eat the Seed Corn: The Simple Habit That Makes Future‑You Prosper

By Bob Peters || September 19, 2025

In the early Republic, farming wasn’t just common-it was life. Around the first U.S. census in 1790, roughly nine in ten Americans lived on farms. Over the 20th century, that share collapsed. By 1960, about 8.7% of Americans were still in agriculture; today, direct on‑farm jobs are near 1.2% of U.S. employment.

Even so, many founders-including Benjamin Franklin-came out of a world shaped by farming. Beyond diplomacy and inventions, Franklin published Poor Richard’s Almanack (1733–1758), a practical annual of planting calendars, weather notes, and sharp one‑liners on prudence, frugality, foresight, and agriculture.

Five lines from Franklin that still land

-“Plough deep, while Sluggards sleep; and you shall have Corn to sell, and to keep.” 

-“Early to bed, and early to rise, makes a man healthy, wealthy and wise.” 

-“For Age and Want, save while you may; No Morning Sun lasts a whole Day.” 

-“Beware of little expences; a small leak will sink a great ship.” 

-“Keep thy Shop, and thy Shop will keep thee.” 

The “seed corn” lesson

Long after Poor Richard, American farmers passed down another proverb: “Don’t eat your seed corn.” Seed corn is the best fraction of the harvest-saved so there’s a next harvest. Temptations came-feed a little extra to livestock, trade a little for a shiny tool-but the seed stayed off‑limits. Eat it now and you’ve mortgaged tomorrow.

Money works the same way. Each paycheck is a harvest. The habit that converts today’s income into tomorrow’s freedom is simple: hold back some “seed” and plant it-automatically and consistently-into long‑term investments. The habit matters more than any hot take, gadget, or “hack.”

Why holding back seed works: compounding

Reinvested gains can earn on prior gains-compound growth. A quick mental shortcut is the Rule of 72: divide 72 by an annual return to estimate doubling time.

History backs the idea. Professor Aswath Damodaran from NYU Stern School, a highly regarded researcher of our time, has compliled historical asset class returns and the miraculous impact of compounding.  The earlier the better.

How much seed to hold back?

Use a one‑line rule: Pay yourself first. Aim for 15% of gross income toward long‑term investing. If 15% is a leap, start with 5-10% and nudge it up by 1% each year or with every raise. The deeper reason this works: your savings rate is the one lever you fully control.

What the math feels like

• Start at 25: $500/month ≈ $1.31M at 7% after 40 years; ≈ $763k at 5%.
• Start at 35: $500/month ≈ $610k at 7% after 30 years; ≈ $416k at 5%.
• Start at 25: 10% “seed” on a $70k salary (~$583/mo) ≈ $1.53M at 7% after 40 years; ≈ $890k at 5%.
• Start at 25: 15% “seed” on a $70k salary (~$875/mo) ≈ $2.30M at 7% after 40 years; ≈ $1.34M at 5%.

Illustrative only.  Simple Math.

The farmer’s three rules for money

1. Plant first. Auto‑contribute to a 401(k)/403(b), IRA, or (after those) a taxable account. Capture any employer match.
2. Don’t eat the seed. Build a 3–6 month emergency fund so you aren’t forced to sell at bad moments.
3. Rotate your crops. Diversify investments match to your time horizon and risk.

Weather happens. Keep planting.

Some years feel like nothing’s growing-bear markets, recessions, surprises. Over long horizons, broad indexes with reinvested dividends have rewarded patience, though the path is never linear. J.P. Morgan’s widely cited “Annual returns and intra‑year declines” chart is a useful visual reminder.

A simple plan you can start this week

• Pick your seed rate: stretch 15% of gross income; starter 5–10% with +1% each raise.
• Automate it: contributions right after payday; SEP‑IRA or Solo 401(k) if self‑employed.
• Grab the match: if your employer matches 3–6%, hit their cap.
• Keep fees low; diversify broadly: low‑cost index funds/ETFs.
• Build your weather shelter: 3–6 months cash‑like reserves.
• Replant every raise: bump your seed rate as income rises.
• Stay planted: review annually; rebalance as needed. Let compounding breathe.

The optimistic truth

Most people overestimate what they can do in a month and underestimate what they can do in 10–20 years. Guard the seed. Plant it first. Keep planting-especially when you don’t feel like it. Let time and compounding do their quiet work. Future‑you will thank present‑you.