“If having a soul means being able to feel love and loyalty and gratitude, then animals are better off than a lot of humans.” 
– James Herriot

“Until one has loved an animal, a part of one’s soul remains unawakened. ” 
– Anatole France

“Heaven goes by favor. If it went by merit, you would stay out and your dog would go in. ” 
– Mark Twain

“… love knows not its own depth until the hour of separation.” 
– Kahlil Gibran

“It is a fearful thing to love what death can touch.” 
– Anonymous

“The dog is a gentleman; I hope to go to his heaven, not man’s.” 
– Mark Twain

“Dogs… do not ruin their sleep worrying about how to keep the objects they have, and to obtain the objects they have not. There is nothing of value they have to bequeath except their love and their faith.” 
– Eugene O’Neill

“The misery of keeping a dog is his dying so soon. But, to be sure, if he lived for fifty years and then died, what would become of me?” 
– Sir Walter Scott