第四期《文化长廊》栏载“公开的秘诀”，文短情长，发人深省。问题是所述“苏轼连在马上、枕上、厕上都在构思文章”事，乃熟典误用，未免大意耳！其“三上”者，典出欧阳修《归田录》：“余平生所作文章，多在三上，乃马上、枕上、厕上也。盖惟此尤可以属思尔。”人皆熟知， The fourth phase of the “Cultural Corridor” column “public tips”, the paper is short, thought-provoking. The problem is that the “Su Shi even immediately, on the pillow, toilet articles are conceived in the matter,” is a misuse of cooked Code, is too careless! The “three on the” who, Code of Ouyang Xiu “return to record”: “Yu Pingsheng made an article, more than three, but immediately, on the pillow, the toilet also cover this especially may belong to Sier.” Everyone is familiar,