About

Retrieving a relevant quote from memory under pressure is unreliable. The brain favors recency, not relevance. This generator contains 150 curated quotes across 8 thematic categories - from stoic philosophy to scientific perseverance. Each quote is indexed by domain so the output matches context: a presentation on resilience gets Marcus Aurelius, not a cookie-cutter poster slogan. The selection algorithm tracks your recent history to prevent repeats within a session window of 20 quotes.

Limitation: this corpus is static and English-only. Attribution follows the most commonly accepted source, though misattribution is endemic in quote literature - verify before publishing in academic work. The image export renders at 1080×1080px, suitable for social media but not print-resolution.

Formulas

The selection algorithm avoids naive random sampling, which produces perceptible clustering. Instead, it uses a filtered pool with history exclusion:

P_available = Q_category − H_recent

Where Q_category is the set of all quotes matching the selected category filter, and H_recent is a circular buffer of the last 20 generated quote IDs. The selected quote index i is computed via:

i = floor(random() × |P_available|)

When |P_available| = 0 (all quotes in category have been seen recently), the history buffer is flushed and the full category pool is restored. Image export uses Canvas 2D context with a word-wrap algorithm that splits on whitespace and measures each line via measureText() to enforce a maximum line width of 900px within the 1080×1080 canvas.

Reference Data

Category	Quote Count	Notable Authors	Primary Theme
Perseverance	20	Churchill, Edison, Mandela	Overcoming failure and adversity
Courage	18	Roosevelt, Earhart, Hemingway	Facing fear and taking risks
Wisdom	20	Seneca, Aurelius, Epictetus	Stoic philosophy and clarity
Success	19	Carnegie, Jobs, Winfrey	Achievement and ambition
Creativity	18	Einstein, Picasso, Curie	Innovation and original thinking
Happiness	18	Dalai Lama, Twain, Thoreau	Contentment and gratitude
Leadership	19	Lincoln, Drucker, Thatcher	Influence and responsibility
Growth	18	Frankl, Rumi, Angelou	Self-improvement and learning
Total corpus: 150 quotes

Frequently Asked Questions

A circular history buffer stores the IDs of the last 20 generated quotes. Each new generation filters these IDs from the available pool before random selection. Once all quotes in the active category have been seen, the buffer resets automatically. This guarantees maximum variety before any repeat occurs.

Attribution follows the most widely accepted scholarly source. However, quote misattribution is a well-documented problem - many famous quotes (especially those attributed to Einstein, Lincoln, or Twain) have disputed origins. For academic or commercial use, cross-reference with a primary source database such as Wikiquote or the Yale Book of Quotations.

The image exports as a PNG file at 1080×1080 pixels, which is the standard square format for Instagram and most social media platforms. The canvas renders text with anti-aliasing. For higher resolution needs (print posters), the exported image would require upscaling in an external editor.

Category sizes range from 18 to 20 quotes. With uniform random selection across the merged pool, each quote has equal probability regardless of category. Perceived clustering is a cognitive bias known as the clustering illusion - humans detect patterns in genuinely random sequences. The history buffer mitigates this by enforcing spread.

Yes. The entire quote corpus is embedded in the JavaScript source. No network requests are made at any point. Your category preference and favorites are stored in localStorage, so they persist across browser sessions without any server.