Hence, in the social sciences of psychology and sociology, there are numerous factions, all saying their own things. Perhaps they still aren't clear about what the true principles and laws are. Perhaps there are laws and perhaps there aren't. And it may be quite difficult to find these laws.
所以社會科學的心理學、社會學派別很多、各說各話，可能他們還不清楚真正的律則是什麼，這其中可能有律則、也可能沒有律則，由困難的科學角度來看的話，要找出律則可能相當困難。