The Nature of Existence is Atoms and Void.

Based on David Sedley's 'Lucretius and the Transformation of Greek Wisdom' (1988), one book of 'On Nature' was equivalent to 80 pages of modern book. That's around 20k words. 'On Nature' in total would be around 3000 pages today. Meaningful fragments of books 2, 11, 14, 15, 25 and 28 were recovered so far (plus few other smaller fragments). My rough estimate is that around 10k words are available to us. That's about 1-2% in total of the whole thing.

Here is an illustration using a segment of a painting of mine that depicts the statement, "The Nature of Existence is Atoms and Void," a citation from Plutarch, taken from either of two lost texts of Epicurus: "On Nature" or "On atoms and the Void." Although there are fragments of "On Nature," almost all of his 37 scrolls have been lost. What is fascinating is what was in the other lost works of his, which amount to 300 scrolls? Does anyone here have any further information or would like to add corrections or additions to my statement above? ...Additionally, what percentage of Epicurus' total writings has survived? And what could have been the other topics of some of those lost scrolls? ...What comes to mind is how much we have lost in intellectual and artistic work created throughout world history, which is tragic. ...This appears to be a pattern that could be very well repeated.