The only thing about this statement that is false is that dogs repay us with their unconditional love. Just because they don't know they are repaying you doesn't in any way, shape, or form lessen the value of that repayment.
Daisy Mae, a former dog-fighting dog who cuddles with the elderly and frail, and even allows small children to hold her tight when they are undergoing painful medical procedures. I hate when people say pitbulls are bad dogs! they are the sweetest.