Thus Galen summarised .
Thus Galen synthesised the work of his predecessors , and it is in Galen 's words ( Galenism ) that Greek medicine was handed down to subsequent generations , such that Galenism became the means by which Greek medicine was known to the world .
Thus Galen summarised and synthesised the work of his predecessors , and it is in Galen 's words ( Galenism ) that Greek medicine was handed down to subsequent generations , such that Galenism became the means by which Greek medicine was known to the world .