Legalism

In Chinese history, legalism was one of the main philosophic currents during the Warring States Period although the term itself was invented in the han dynasty and  it doesn't refer to an organized ‘school’ of thougt. Legalism was a utilitarian political  philosophy that did not address higher questions like the nature and purpose of life . The school’s most famous proponent and contriputor Han Fei Zi believed 

that a ruler should use the following three tools to govern his subjects .