A

Test question analysis: The material in the question "The fish said to the water: 'You can't see my tears, because I am in the water.' Water said to The fish said: 'I can feel your tears, because you are in my heart. '" This shows that everything is in a universal connection, and the connection between things is universal, so item A meets the meaning of the question and can be selected; B. The expressions in item C and C are correct but inconsistent with the theme of the question, so they cannot be selected; the connection between things is conditional, so item D is expressed incorrectly and cannot be selected. Therefore, the answer is option A.