规律存在于物质之中，物质无不体现规律；物质存在于虚空之中，虚空无不包含物质。
The only limit to our realization of tomorrow is our doubts of today.
Agricultural technology is not lofty theory, but must be truly implemented in the fields.
记忆是个狡猾的东西，它既可以是祝福也可以是诅咒。