contemplate thinking

So when I contemplate a physical object I'm aware that it is necessarily extended and I am also aware that it is not essential to its being that it be a thinking thing.

当我思考一个实体对象的时候，我会意识到它的必然延展，且其精髓并不是一个思考的物质。

When I contemplate myself I can very clearly understand myself as being a thinking, non-extended thing.

当我在思考我自身的时候，我能非常清楚地明白我自身正在思考，并没有延展的事物。

She put her hand to her head, as if thinking of something which confused and bewildered her, and which she found it difficult to contemplate with calmness.

她把手按在自己的头上，仿佛想起了什么使她混乱和迷惑的事情，想起了她觉得难以平静地思索的事情。