皆川淇园是日本德川时代中期的汉学家。《问
学举要》是皆川淇园归纳的为学纲领，可视为系统
读书法，计六要三十目。“审思”作为六要中最后
一步，它既是《问学举要》的结束与总结，同时
又是学问之道起始与展开。“审思”有三事：“体
察”、“权衡”与“验实”。“体察”是进学阶
段，“权衡”是判断阶段，“验实”是实践阶段。
三者之间是互相依存、缺一不可的关系。“审思”
中的三事，皆是对知行关系的精微考察，归根到底
是为己之学。
Kien Minagawa is a Sinologist in Japanese Tokchon middle age. Abstract of Inquiry and Study is the learning principal of Kien Minagawa, which containing Six Clauses and Thirty Subclauses. Reflection is the last step of Six Clauses, and it is not only the end and summary of the article, but also the beginning of learning. Reflection contains three stages: observing, thinking and practise, which depend on each other. The three stages of Reflection are the study of the subtle relationship between knowledge and practice, and also the learning for oneself.
