The beauty of life is, while we cannot undo what is done, we can see it, understand it, learn from it and change. So that every new moment is spent not in regret, guilt, fear or anger, but in wisdom, understanding and love.

解释：药物之间有阴阳、子母、兄弟等配对关系，说明药物配伍的原理。

小说质量的最大预测因素是小说家愿意面对自己或他人的不美好真相。