The essence of mathematics lies in its freedom.

You have to believe in your idea and be willing to persist through a lot of challenges.

Agricultural technology is not lofty theory, but must be truly implemented in the fields.

想象并非作为现实的否定或补偿而形成；它在符号之间生长，从一本书到另一本书，在重复和评论的间隙中；它在书籍之间的间隔中诞生并成形。