Scientia potentia est

The phrase "scientia potentia est" (or "scientia est potentia"^[p] or also "scientia potestas est") is a Latin aphorism meaning "knowledge is power". It is commonly attributed to Sir Francis Bacon, although there is no known occurrence of this precise phrase in Bacon's English or Latin writings. However, the expression "ipsa scientia potestas est" ('knowledge itself is power') occurs in Bacon's Meditationes Sacrae (1597). The exact phrase "scientia potentia est" was written for the first time in the 1668 version of the work Leviathan by Thomas Hobbes, who was secretary to Bacon as a young man.

The related phrase "sapientia est potentia" is often translated as "wisdom is power".

The earliest documented occurrence of the phrase "Knowledge is power" is from Imam Ali (599-661 CE), as recorded in the tenth-century book Nahj Al-Balagha (originally in Arabic). He said:

Knowledge is power and it can command obedience. A man of knowledge during his lifetime can make people obey and follow him and he is praised and venerated after his death. Remember that knowledge is a ruler and wealth is its subject.

Another account of this concept is found in the Shahnameh by the Persian poet Ferdowsi (940–1020 CE) who wrote: "Capable is he who is wise" (in Persian: توانا بود هر که دانا بود). This hemistich is translated to English as "knowledge is power" or "One who has wisdom is powerful".

A proverb in practically the same wording is found in Hebrew, in the Biblical Book of Proverbs (24:5): גֶּבֶר-חָכָם בַּעוֹז; וְאִישׁ-דַּעַת, מְאַמֶּץ-כֹּחַ. This was translated in the latin Vulgata as "vir sapiens et fortis est et vir doctus robustus et validus" and in the King James Version, the first English official edition, as "A wise man is strong, a man of knowledge increaseth strength".

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