a short, noteworthy statement
dictum - declaration
A ‘dictum’ is a formal pronouncement or rule that expresses a general truth or aspect of life in a concise and interesting way. By extension, it is also applied in relation to an opinion or order from somebody highly respected or in a position of authority. Most commonly used in a professional context, particularly in written English.
Our manager issued a dictum stating that anyone arriving late to a meeting would be fined £20.
In business, I have found a lot of truth in the old dictum “The harder I work, the luckier I get.”
“First do no harm”, the dictum of the ancient Greek physician Hippocrates, remains the central principle of the medical community.