Mao Tse-tung on the psychology of problem solving and the empirical method

“You can’t solve a problem? Well, get down and investigate the present facts and its past history! When you have investigated the problem thoroughly, you will know how to solve it. Conclusions invariably come after investigation, and not before. Only a blockhead cudgels his brains on his own, or together with a group, to “find a solution” or “evolve an idea” without making any investigation. It must be stressed that this cannot possibly lead to any effective solution or any good idea.”

Oppose Book Worship (May 1930)