The philosopher's stone, or more properly philosophers' stone (حجر الفلاسفة; lapis philosophorum), is a mythic alchemical substance capable of turning base metals such as mercury into gold (chrysopoeia, from the Greek χρυσός khrusos, "gold", and ποιεῖν poiēin, "to make") or silver. It is also called the elixir of life, useful for rejuvenation and for achieving immortality; for many centuries, it was the most sought-after goal in alchemy. The philosopher's stone was the central symbol of the mystical terminology of alchemy, symbolizing perfection at its finest, enlightenment, and heavenly bliss. Efforts to discover the philosopher's stone were known as the Magnum Opus ("Great Work").
The earliest known written mention of the philosopher's stone is in the Cheirokmeta by Zosimos of Panopolis (300 AD). Alchemical writers assign a longer history. Elias Ashmole and the anonymous author of Gloria Mundi (1620) claim that its history goes back to Adam, who acquired the knowledge of the stone directly from God. This knowledge was said to have been passed down through biblical patriarchs, giving them their longevity. The legend of the stone was also compared to the biblical history of the Temple of Solomon and the rejected cornerstone described in Psalm 118.
The theoretical roots outlining the stone's creation can be traced to Greek philosophy. Alchemists later used the classical elements, the concept of anima mundi, and Creation stories presented in texts like Plato's Timaeus as analogies for their process. According to Plato, the four elements are derived from a common source or prima materia (first matter), associated with chaos. Prima materia is also the name alchemists assign to the starting ingredient for the creation of the philosopher's stone. The importance of this philosophical first matter persisted throughout the history of alchemy. In the seventeenth century, Thomas Vaughan writes, "the first matter of the stone is the very same with the first matter of all things.
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Paracelsus (ˌpærəˈsɛlsəs; paʁaˈtsɛlzʊs; 1493 – 24 September 1541), born Theophrastus von Hohenheim (full name Philippus Aureolus Theophrastus Bombastus von Hohenheim), was a Swiss physician, alchemist, lay theologian, and philosopher of the German Renaissance. He was a pioneer in several aspects of the "medical revolution" of the Renaissance, emphasizing the value of observation in combination with received wisdom. He is credited as the "father of toxicology".
Immortality is the concept of eternal life. Some modern species may possess biological immortality. Some scientists, futurists, and philosophers have theorized about the immortality of the human body, with some suggesting that human immortality may be achievable in the first few decades of the 21st century with the help of certain technologies such as mind uploading (digital immortality). Other advocates believe that life extension is a more achievable goal in the short term, with immortality awaiting further research breakthroughs.
In alchemy, the term chrysopoeia (from Greek χρυσοποιία, khrusopoiia, "gold-making") refers to the artificial production of gold, most commonly by the alleged transmutation of base metals such as lead. A related term is argyropoeia (ἀργυροποιία, arguropoiia, "silver-making"), referring to the artificial production of silver, often by transmuting copper. Although alchemists pursued many different goals, the making of gold and silver remained one of the defining ambitions of alchemy throughout its history, from Zosimus of Panopolis (c.
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