“A cat may look at a king” means that even a person of lowly class has his rights. It means that a person even if of an inferior status has certain minimum rights which later become the foundation of human rights.
The origin of “a cat may look at a king” is stated to be unknown. However, it has been used in the book of proverbs titled The Proverbs and Epigrams of John Heywood published in 1562. In the book, it goes thus; “What, a cat may look on a king, ye know!”
Examples in Sentences:
Example #1: It happens that sometimes even a historian can challenge a politician acting upon a cat may look at the king.
Example #2: A-cat-may-look-at-a-king may not work in the case of weak where power is hold by the majority.
Example #3: In new Apple management style, nobody cares for the boss unless in a critical state which means that even a cat may look at a king.