Here are some motivational quotes about dogs:

1. "Life is short, sniff the moments." - Unknown

2. "Dogs teach us to love unconditionally, forgive effortlessly, and live fully." - Unknown

3. "The best way to predict your future is to create it. Just like a dog creates joy." - Unknown

4. "A dog's wagging tail says, 'I'm happy to see you,' and 'I'm happy to be alive.'" - Unknown

5. "Dogs remind us that playfulness and curiosity are essential parts of life." - Unknown

Some more:

1. "The world would be a better place if humans treated each other like dogs treat their favorite people." - Unknown

2. "You can't buy happiness, but you can buy treats for your dog, and that's kinda the same." - Unknown

3. "Every dog has a unique nose print, just like every person has a unique life story." - Unknown

4. "Dogs live in the moment; we should too." - Unknown

5. "Life is too short to not chase squirrels." - Unknown