英语翻译Some small children don't know it's not polite to laugh

英语翻译
Some small children don't know it's not polite to laugh at others.Some of them laugh at a lame or blind person,or someone in bed clothes,but as they grow up,they learn not to hurt people's feelings by laughing at their weaknesses.They learn to laugh at other things.Most important,they learn to laugh at themselves.For example,you make a mistake or lose a basketball match.Do you become angry?Or can you laugh at yourself and hope to do better next time?If you can,you've really grown up.