Benjamin Franklin — "A full belly makes a dull brain."
A full belly makes a dull brain.
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More from Benjamin Franklin
"He that has a wife and children, has given hostages to fortune."
"I shall rise to apologize for not getting up."
"The greatest invention of the world is the invention of good bread."
"The way to wealth, if you desire it, is as plain as the way to market. It depends chiefly on two words, industry and frugality."
"We must all hang together, or assuredly we shall all hang separately."
About Benjamin Franklin (1706-1790)
Polymath Founding Father, diplomat, and Poor Richard's Almanack author who helped draft the Declaration of Independence and the Constitution. Closely associated with John Adams (fellow Founder, Massachusetts statesman) and Thomas Jefferson (fellow Declaration drafter). For an intellectual contrast, see Thomas Hutchinson, last royal governor of colonial Massachusetts — Franklin leaked Hutchinson's loyalist correspondence to Boston in 1772 to inflame revolutionary sentiment — Hutchinson represented the colonial-aristocrat crown-loyalty that Franklin's revolution was organized to dismantle.
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Understanding this quote
What it means
Overeating dulls your mind. When your stomach is stuffed, your body channels blood and energy toward digestion, leaving you drowsy, unfocused, and mentally sluggish. The quote warns against gluttony on practical grounds: a person who eats too much simply cannot think clearly, work effectively, or stay alert. Moderation at the table is a direct precondition for mental sharpness and productive intellectual effort.
Relevance to Benjamin Franklin
Franklin listed Temperance first among his 13 virtues, defining it explicitly as 'Eat not to dullness; drink not to elevation.' As printer, inventor, diplomat, and writer, he depended on sustained mental output daily. His Poor Richard's Almanack repeatedly tied physical discipline to intellectual and financial success. For Franklin, overindulgence wasn't merely unhealthy—it directly threatened the industrious self-improvement and clear reasoning that defined his entire public character.
The era
In 18th-century colonial America, heavy meals signaled prosperity and social standing, yet Protestant work ethics championed frugality and temperance as civic virtues. The Enlightenment placed reason and rational capacity at the center of public life. Franklin published such aphorisms in Poor Richard's Almanack for ordinary colonists who valued practical wisdom. Warning against excess eating was both a health observation and a cultural counterweight to aristocratic indulgence in a society building itself on meritocratic self-reliance.
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