ABSTRACT

Despiteitslackof(secure)foundations,ourknowledgecangrow-andit cangrowinheightonlyifitgrowsindepth:itgrowsbyproducingnew problems,ofnewdepth,whichstimulatenewtentativesolutions;thatis, newideas;anditgrowsbythecriticaldiscussionoftheseideas.Nothing inourintellectuallifeisexemptfromthisprocessofcriticismanderror elimination.