The glory of friendship is not the outstretched hand,
nor the kindly smile nor the joy of companionship;
it is the spiritual inspiration that comes to one when
he discovers that someone else believes in him and is
willing to trust him.
Glory of Friendship by Ralph Waldo Emerson
or, in other words
If a dog will not come to you after having looked in your face, you should go home and examine your conscience.
- Woodrow Wilson