Alcántara, ManuelAldous HuxleyAntoni BolinchesAnónimoArendt, HannahAriely, DanArthur RimbaudArthur SchopenhauerAstorga, LuisAzorinBartra, RogerBarzun, JacquesBertrand RussellCarnegie, DaleCervantes, PereCharles BaudelaireChertorivski, SalomónChica, LauraChávez, Paulina I.Cordova, LorenzoCury, AugustoD'espósito, Leonardod'Ors, EugenioDante AlighierideGrasse Tyson, NeilDickie JohnDuby, GeorgesDudda, RicardoDuhigg, CharlesFerry, LucFlorescano, EnriqueForcellino, AntonioFromm, ErichFulcanelliGiorgio, AgambenGonzález Corpancho, RicardoGrönemeyer, DietrichGustavo VarelaGuzmán, AlenkaH.G. WellsHari, JohannHawking, StephenHay, Louise L.Hernandez, AnabelHobsbawm, EricJean MeyerKarl, MarxKohan, Silvia AdelaLanier, JaronLAWRENCE, T.E.Le Goff, JacquesLeninLukes, StevenMAQUIAVELOMlodinow, LeonardMongin, OlivierMontesquieuMORA, FRANCISCOMyers, Steven LeePaz, OctavioPeirano, MartaPenrose, RogerPeterson, Jordan B.Piccolo, FrancescoPlatónPosteguillo, SantiagoQuignard, PascalQuintanilla, SusanaSafranski, RüdigerSaid, Edward W.San AgustÃnSantiago PosteguilloSanyal, Mithu M.Schettino, MacarioSchopenhauer, ArthurScott Bronstein, J. ScottSigmund, FreudStephen R. CoveySun TzuSénecaTOLA FERNANDOTolle, EckhartTzu, SunVariosVarios autoresVV. AA.Webb, AmyWilliamson, MarianneYnclán, MarÃa GabrielaZepeda Patterson, JorgeZimmer, Robert