冯契以心灵自由作为哲学创作的源泉。首先，心灵自由是聚焦于哲学道路的选择坚守：把心灵自由与回答时代课题相统一；把心灵自由与保持独立人格相统一；把心灵自由与创造性对待马克思主义相统一。其次，心灵自由是在以往哲学传统中能入能出：主体和对象之间，“通过”和“超过”相结合；在中西哲学传统上，“接着讲”和“比着讲”相结合；在古今哲学传统之间，“节今”和“言古”相结合。心灵自由作为哲学创作的源泉，在于哲学创作本身是个性化的。

FENG Qi takes spiritual freedom as the source of his philosophical creation at two levels. First, spiritual freedom means to adhere to the chosen philosophical approaches. In other words, spiritual freedom is in accordance with responding to current issues, maintaining independent personality, and treating Marxism creatively. Second, spiritual freedom means to go into and come out of previous philosophical traditions freely through unifying “passing” and “surpassing” in terms of the relationship between research subject and object, unifying “following” and “comparing” in treating the traditions of western and Chinese philosophy, and combining “studying the present” and “speaking of the ancient” in dealing with current and ancient philosophical traditions. With spiritual freedom as its source, philosophical creation becomes personalized.