The purpose of a model is to be simple enough to understand and use, but complex enough to capture the essential features of the system.
模型的目的是足够简单以便理解和使用，但又足够复杂以捕捉系统的基本特征。
Invert, always invert: Turn a situation or problem upside down. Look at it backward.
Invest in innovation today to secure relevance tomorrow.
管理是把事情做对，领导是做对的事情。
我不害怕失败，我害怕不去尝试。
To read is to resist; to write is to rebel.
教师在学校不是为了强加某些思想或形成某些习惯，而是作为社区的一员来选择影响孩子的影响，并帮助他适当地回应这些影响。