字里行间【zì lǐ háng jiān】
read between the lines
[成]字句之间;亦指文章的某种意思或感情在字句中间隐约透露出来

从他文章的字里行间可以看出,他对生活充满热爱。
It can be read between the lines of his article that he passionately loves the life.
自【zì】
1. oneself; self 2. of course 3. from; since
[代]1、本人;自己 [副]2、当然 [介]3、从;由

约翰自称是物理学家。
John describes himself as a physicist.

公道自在人心。
Justice lies in people's heart.

自他离开学校,就没有他的消息。
No one has had any news about him since he left school.