Scientia potentia est 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: 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
Latin grammar in Latin. In the present or future, the same tenses have both aspectual meanings. Unlike in Ancient Greek or modern English, there is no distinction between perfect ("I have done") and simple past ("I did"). The same tense, known in Latin grammar as the perfect tense, has both meanings. The participles "ductus" and "ductūrus" change for different genders. Thus "ductus est" = 'he was led', but "ducta est" 'she was led', "ductum est" = 'it was led'. The passive imperative is almost never used except in deponent verbs, e.g. "sequere mē!" 'follow me!' Regular verbs are divided into four groups,