A donkey is a donkey though it may carry the Sultan's treasure.
A dog will always be a dog, even if he is raised by lions
A clear conscience shines not only in the eyes.
A bite from a loving mouth is worth more than a kiss from any other.
We know what we are, but know not what we may be. William Shakespeare
Nothing is impossible, the word itself says 'I'm possible'! Audrey Hepburn