[My kitten's] gambols are not to be described, and would be incredible, if they could.

... she, that will with kittens jest, Should bear a kitten's joke.

[My kitten] is dressed in a tortoise-shell suit, and I know you will delight in her.

... no wisdom that [my kitten] may gain by experience and reflection hereafter will compensate for the loss of her present hilarity.