'Contented cat' is not a proverb. Proverbs are longer than two words eg A stitch in time saves nine.
a cat can see a king
Roughly That you can not get things if you are "too kind", or without fighting.
A contented cat is likely to purr, especially if stroked.
The phrase, "A sleeping cat cannot catch a rat" is a proverb. I means that if someone is not paying attention then they will miss an opportunity.
This is proverb in Filipino that is about greed. Being not contented with what you already have and as a result, you lost in the process what is already yours.
contented, relaxed
The opposite of contented may be discontented, disgruntled, or unhappy.Where the meaning is sated or satisfied, the opposite would be unsatisfied, or unfulfilled.
The general meaning of the proverb is that when it comes to solving your own problems, you are the best person to do that. The French have a equivalent proverb: Help yourself and God will help you.
The meaning of the proverb 'Unity is strength' is that there is power in team work. This proverb teaches when people come together and work together towards a common goal there is success.
When the cat is away, the mice will play.
From which Proverb verse is "Virtue is its own reward take from?"
It "kneads the dough" this is a learned behavior. As a kitten is feeding it will "knead" so the milk will flow easier. They also purr when they're content another behavior learned from the mother. When kittens are born they are blind and deaf so the mother would purr and they would feel the vibrations and it would soothe them.