第四部分论述了创造性思维的具体科学方法；
Part four: the specific scientific methods of creative thinking.
简单性原则是一种重要的科学思维方法。
The simple principle is an important scientific and thinking method.
不断拓展训练是提高思维能力的科学方法。
Constant training is the scientific method for them to enhance this ability.
辩证思维方法是最普遍适用、最重要的科学思维方法之一。
Dialectial thought is one of the most popular and important scientific thinking methods.
辩证思维方法是最普遍适用、最重要的科学思维方法之一。
Dialectial thought is one of the most popular and important scientific thinking methods.
应用推荐