宋朝时有位画家叫文同，
他的画就数画竹最成功。
为什么他画竹子那样好？
据说他能把竹子印心中。
平日里仔细观察多用心，
画出来犹如真竹一般同。
到后来“胸有成竹”作成语，
常常把这样的情况来形容：
做事情事先考虑很周密，
到时候才有把握得成功。
Having an Image of Bamboo in the Mind
In the Song Dynasty（960—1276A。D。）there was an artist named Wen Tong。He was famous for his skills of drawing bamboo。Why could he draw them well？It was said that he had already printed the images in his mind。In his daily life he observed them very carefully，so he could draw them lifelike。
Later on，“Having an Image of Bamboo in the Mind”became an idiom，and it is often used in this way：One should have a well-thought-out plan beforehand in order to turn it into reality。
