You may be dog-tired this ruff Monday morning, but luckily, it's National Puppy Day. You're totally justified in paws-ing your work to look at puppy pictures and read quotes about the adorable animals. After all, dogs are man's best friend -- and for that, they definitely deserve a bit of extra love and celebration.

Read on:

RTR3CBT7 Puppies sit in kennel at a frontier guards' cynology center near Minsk, Belarus, in 2013. Photo: Reuters

“Petting, scratching and cuddling a dog could be as soothing to the mind and heart as deep meditation and almost as good for the soul as prayer.” -- Dean Koontz

“A dog reflects the family life. Whoever saw a frisky dog in a gloomy family, or a sad dog in a happy one? Snarling people have snarling dogs, dangerous people have dangerous ones.” -- Arthur Conan Doyle

RTR25T5O A boxer rests as a Dachshund pup approaches it in Sagua La Grande, Cuba, in 2009. Photo: Reuters

“The world would be a nicer place if everyone had the ability to love as unconditionally as a dog.” -- M.K. Clinton

"Why does watching a dog be a dog fill one with happiness?" -- Jonathan Safran Foer 

RTR26G5Q A long-coated male chihuahua named "Love-kun" with a heart-shaped pattern on his coat sleeps in Odate, Japan, in 2009. Photo: Reuters

"You can say any foolish thing to a dog, and the dog will give you a look that says, 'Wow, you're right! I never would've thought of that!'” -- Dave Barry

“To his dog, every man is Napoleon; hence the constant popularity of dogs.” -- Aldous Huxley

RTX11YMX A Belarussian border guard plays with a German Shepherd puppy at a frontier guards' cynology center near Minsk, Belarus, in 2013. Photo: Reuters

“Whoever said you can't buy happiness forgot little puppies.” -- Gene Hill

“Everything I know I learned from dogs.” -- Nora Roberts

RTX182UK A French Bulldog puppy poses for a portrait at the American Kennel Club in New York in 2014. Photo: Reuters

“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

“You can always trust a dog that likes peanut butter.” -- Kate DiCamillo

RTX12R7L Bo and Sunny, the Obama family's dogs, are pictured on the South Lawn of the White House in 2013. Photo: Reuters

"Dogs are not our whole life, but they make our lives whole." -- Roger Caras

“When an eighty-five pound mammal licks your tears away, then tries to sit on your lap, it's hard to feel sad.” -- Kristan Higgins 

RTR2XEWG A member of the King's Troop Royal Horse Artillery holds a puppy as he prepares to leave St. John's Wood Barracks in London in 2012. Photo: Reuters

"The face of a golden retriever feels like home.” -- David Rosenfelt

“Did you know that there are over 300 words for love in canine?” -- Gabrielle Zevin

RTR19D32 Three dogs play with a stick in a park in the autumn sunshine in Innsbruck, Austria, in 2005. Photo: Reuters

"My little dog -- a heartbeat at my feet." -- Edith Wharton

"Dogs laugh, but they laugh with their tails." -- Max Eastman

RTRY0C A litter of three-week-old tea cup poodle puppies sit in a mug cup and a food and water bowl at a Tokyo pet shop in 2003. Photo: Reuters

"A dog teaches a boy fidelity, perseverance and to turn around three times before lying down." -- Robert Benchley

"The pug is living proof that God has a sense of humor." -- Margo Kaufman

RTXXJDI Two St. Bernard puppies play at an enclosure of the St. Bernard Dog Museum in the southwestern Swiss town of Martigny in 2011. Photo: Reuters

“The only creatures that are evolved enough to convey pure love are dogs and infants.” -- Johnny Depp

“If there are no dogs in heaven, then when I die, I want to go where they went.” -- Will Rogers

Quotes compiled from and Goodreads.