When we talk about writing, we are talking about the attitude of writing. Emphasize "cold", that is, calm down, sit still, not impetuous, not impatient "Impetuousness" means staying at a shallow level and only seeking superficial articles; "Impatience" means impatience with loneliness and quick success, neither of which is desirable. Neither is "cold" but "impatience". The up and down links are said from different angles. The former is a requirement, a should and a condition; The latter is the standard, the discipline and the result. Only when you have achieved the mentality and writing attitude of sitting on the bench for three years will you "not write a word".