Friendship is one of the greatest pleasures that people can enjoy．It is very difficult to find a better explanation of friendship．A true friend does indeed find pleasure in our joy and share sorrow in our grief．In time of trouble,he or she is always at our side to give us his or her help and comfort．Knowing how valuable friendship is,we should be very careful in our choice of a friend．We must choose someone who has a good character,whose activities are good and who shows kindness of heart．We should avoid those shallow people who are easily changed by adversities．A true friend can always be trusted and loved．If you tell a friend your secrets,he or she won’t tell anyone else．Friends share each other’s joys and sorrows．They help each other when they are in trouble,and cheer each other up when they are sad．The most important thing is that a friend always understands you．In conclusion,when you have made a good friend,don’t forget him or he