Do not feel absolutely certain of anything.
To collect is to gather things to yourself, to take things from the world and make them part of your own story.
数学语言是通用的,超越了文化和语言的障碍。
教育是可持续林业的基础,人们保护他们所理解的事物。
最具韧性的农场是与自然合作,而非对抗自然的农场。
质量不是一个部门;它是组织中每个人的责任。