First attributed to Thoreau in A year of sunshine: cheerful extracts for every day in the year‎ (Kate Sanborn, 1886) and American literature‎ (Mildred Cabell Watkins, 1894), but there is no known citation to Thoreau's works.
“

None are so old as those who have outlived enthusiasm.

— Henry David Thoreau

What It Means

This is a placeholder explanation generated by the low-overhead model. It interprets "None are so old as those who have outlived enthusiasm." in the context of "First attributed to Thoreau in A year of sunshine: cheerful extracts for every day in the year‎ (Kate Sanborn, 1886) and American literature‎ (Mildred Cabell Watkins, 1894), but there is no known citation to Thoreau's works." to mean that wisdom is timeless.

Source: Wikiquote: "Henry David Thoreau" (Misattributed) The 'What it means' explanation text was generated by Google Gemini Flash (accessed January 18, 2026). https://gemini.google.com/app
Henry David Thoreau

About Henry David Thoreau

Henry David Thoreau (12 July 1817 – 6 May 1862) was an American essayist, poet, philosopher, abolitionist, naturalist, tax resister, development critic, surveyor, and historian. A leading transcendentalist, Thoreau is best known for his book Walden, a reflection upon simple living in natural surroundings, and his essay Resistance to Civil Government (also known as Civil Disobedience), an argument for disobedience to an unjust state.