Here are a few of the ones I find cute:

To his dog, every man is Napoleon; hence the constant popularity of dogs.
–Aldous Huxley 1894 English Novelist.

If dogs could talk, perhaps we’d find it just as hard to get along with them as we do people.
–Karel Capek 1890-1938 Czech Journalist.

You never realize a dog is a man’s best friend until you start betting on horses.

Dogs are lousy poker players. When they get a good hand they wag their tails.

Dumb dog. I bought a dog whistle. He won’t use it.

A guy wanted the vet to cut his dog’s tail off. The vet asked why. Well, my mother in law is visiting next month and I want to eliminate any possible indication that she is welcome.

Ladies and gentlemen are permitted to have friends in the kennel but not in the kitchen.
–George Bernard Shaw 1856 British Dramatist.

Oh, what is the matter with poor Puggy-Wug? Pet him and kiss him and give him a hug. Run and fetch him a suitable drug. Wrap him up tenderly all in a rug. That is the way to cure Puggy-Wug.
–Winston Churchill, on his daughter Mary’s pet pug.

The great pleasure of a dog is that you make a fool of yourself with him and not only will he not scold you, he will make a fool of himself too.
–Samuel Butler

They never talk about themselves but listen to you while you talk about yourself, and keep up an appearance of being interested in the conversation.
–Jerome K. Jerome, English humorist

They are better than human beings, because they know but do not tell.
–Emily Dickenson

Money will buy a pretty good dog, but it won’t buy the wag of his tail.
–Josh Billings

I have a great dog. She’s half Lab, half pit bull. A good combination. Sure, she might bite off my leg, but she’ll bring it back to me.
–Jimi Celeste

They say the dog is man’s best friend. I don’t believe that. How many of your friends have you neutered?
–Larry Reeb

A dog is like an eternal Peter Pan, a child who never grows old and who therefore is always available to love and be loved.
–Aaron Katcher, American Educator and Psychiatrist

His name is not wild dog anymore, but the first friend, because he will be our friend for always and always and always.
–Rudyard Kipling