Academia needs an atmosphere of open contention among many schools.
Tips
history
Refers to the Warring States intellectual flowering (5th-3rd c. BCE) when Confucianism, Daoism, Mohism, Legalism and others debated openly. 《汉书·艺文志》 lists 189 schools. 百家 ('hundred schools') is hyperbolic - it simply means 'many'.
culture
Mao Zedong revived the phrase in the 1956 policy 百花齐放,百家争鸣 ('let a hundred flowers bloom, let a hundred schools contend'), which remains official policy: variety in the arts, open debate in the sciences.