As iron sharpens iron, so a friend sharpens a friend.
Answer not a fool according to his folly,lest thou also be like unto him.
Knowledge is of more value than gold
Answer a fool according to his folly, Lest he be wise in his own eyes.
In the day of prosperity be joyful, but in the day of adversity consider.
Two are better than one,because they have a good reward for their labor. For if they fall, the one will lif' up his fellow, but woe to him that is alone when he falleth, for he hath not another to help him up.