That was Willl Rogers.
Below are some of my favorites from Mr. Twain on the subject...
"If you pick up a starving dog and make him prosperous, he will not bite you. This is the principal difference between a dog and a man."
"The more I learn about people, the more I like my dog".
"Heaven goes by favor. If it went by merit, you would stay out and your dog would go in."
"The dog is a gentleman; I hope to go to his heaven, not man痴."
"When a man痴 dog turns against him it is time for a wife to pack her trunk and go home to mama."