I thought these grapes were ripe, but I see now they are quite sour. - Aesop

Fair weather friends are not worth much.

A Boy was bathing in a river and got out of his depth, and was in great danger of being drowned. A man who was passing along a road heard his cries for help, and went to the riverside and began to scold him for being so careless as to get into deep water, but made no attempt to help him. “Oh, sir,” cried the Boy, “please help me first and scold me afterwards.” Give assistance, not advice, in a crisis. THE QUACK FROG Once upon a time a Frog came forth from his home in the marshes and proclaimed to all the world that he was a learned physician, skilled in drugs and able to cure all diseases. Among the crowd was a Fox, who called out, “You a doctor! Why, how can you set up to heal others when you cannot even cure your own lame legs and blotched and wrinkled skin?” Physician, heal thyself.

Every person, according to an ancient legend, is born into the world with two bags suspended from their neck: all bags in front full of their neighbors’ faults, and a large bag behind filled with his own faults. Hence it is that people are quick to see the faults of others, and yet are often blind to their own failings.