The extension of knowledge lay in the investigation of things.
For only when things are investigated is knowledge extended;
only when knowledge is extended are intentions sincere;
only when intentions are sincere are hearts and minds rectified;
only when hearts and minds are rectified are personal lives cultivated;
only when personal lives are cultivated are families regulated;
only when families are regulated are states governed;
only when states are governed is there peace …
All, without exception, must take self-cultivation as the root.
Master K’ung (Confucius)