879:;<=>98;7 ?9:@7A9+?(!7<(B@!57@??@? Logician Personality INTP-A / INTP-T !"#$%&'(%#)(*+,,)-)./)01 !" Introduction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he Life of the Mind 5:A232.-4&:P17-&/:47&1C7647/?74&21C:DAC1&Z&KC23C&24-X1&-73744.<2/0&.&F.8 1C2-AE&>7:R/7&K21C&1C24&R7<4:-./210&10R7 C.<8/0&7?7<&41:R&1C2-L2-AE&@<:6&1C7 6:67-1&1C70&K.L7&DRM&1C72<&62-84 FDYY&K21C&287.4M&UD7412:-4M&.-8 2-42AC14E&,1&12674M&1C70&6.0&7?7-&\-8 1C7647/?74&3:-8D312-A&PD//%[78A78 87F.174&2-&1C72<&:K-&C7.84E 8&+-%,+*%9#$+,:$70)%(0.;$<(-%7%+, '#).(,+=%*%#.$7+,$>,:$#,:=#.. 5+.7%,+*%(,$%,$*"#$4()?%,-.$(5$*"#%) (4,$&%,:1 @<:6&1C7&:D14287M&5:A232.-4&6.0&4776 1:&/2?7&2-&.&-7?7<%7-82-A&8.08<7.6E ;C70&C.?7&.&<7RD1.12:-&P:<&F72-A R7-42?7M&871.3C78M&.-8&.&F21&<747<?78E ;C.1&24M&D-12/&1C70&1<0&1:&1<.2-&.//&:P&1C72< 67-1./&7-7<A0&:-&1C7&6:67-1&:<&1C7 R7<4:-&.1&C.-8M&KC23C&3.-&F7&.&F21 D-3:6P:<1.F/7&P:<&7?7<0:-7E&WD1 <7A.<8/744&:P&KC23C&6:87&1C70X<7&2-M 5:A232.-4&.<7&*-1<:?7<14&.-8&17-8&1:&A71 12<78&:D1&F0&7Q17-42?7&4:32./2Y2-AE&,P17< .&/:-A&8.0M&1C70&3<.?7&1267&./:-7&1: 3:-4D/1&1C72<&:K-&1C:DAC14E WD1&21&K:D/8&F7&.&6241.L7&1:&1C2-L&1C.1 5:A232.-4&.<7&D-P<27-8/0&:<&DR12AC1E JC7-&1C70&3:--731&K21C&4:67:-7&KC: 3.-&6.13C&1C72<&67-1./&7-7<A0M&1C747 R7<4:-./21274&.F4:/D17/0&/2AC1&DRM /7.R2-A&P<:6&:-7&1C:DAC1&1:&.-:1C7<E @7K&1C2-A4&7-7<A2Y7&1C76&/2L7&1C7 :RR:<1D-210&1:&4K.R&287.4&:<&7-B:0&. /2?7/0&87F.17&K21C&.-:1C7<&3D<2:D4M 2-UD2<2-A&4:D/E Elementary, My Dear Logician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d:D<&R7<4:-./210&10R7&24^ 7?7<08.0&K:<L&:P&1D<-2-A&1C:47&287.4 Logician 2-1:&<7./210&8:74-X1&./K.04&C:/8&1C72< 2-17<741E&@:<1D-.17/0M&KC7-&21&3:674&1: INTP-T 82447312-A&.&1<23L0M&6D/12/.07<78 R<:F/76&.-8&3:62-A&DR&K21C&.&3<7.12?7 4:/D12:-M&P7K&R7<4:-./210&10R74&3.6.13C&5:A232.-4X&3<7.12?7&A7-2D4&.-8 R:17-12./E Mysteries of the Universe 5:A232.-4&.<7&2--:?.12?7&2-?7-1:<4&K21C&.D-UD7-3C.F/7&1C2<41&P:<&L-:K/78A7E >7:R/7&K21C&1C24&R7<4:-./210&10R7&K.-1 1:&D-87<41.-8&7?7<01C2-A&2-&1C7 D-2?7<47M&FD1&:-7&.<7.&2-&R.<123D/.< ,-./ 17-84&1:&60412P0&1C76^&CD6.-&-.1D<7E ,4&1C72<&-.67&4DAA7414M&5:A232.-4&P77/ 6:41&.1&C:67&2-&1C7&<7./6&:P&/:A23&.-8 <.12:-./210E&,4&.&<74D/1M&1C70&3.-&\-8 1C7647/?74&F._78&F0&1C7&2//:A23./M 2<<.12:-./&K.04&1C.1&P77/2-A4&.-8 76:12:-4&2-[D7-37&R7:R/7X4&F7C.?2:<&Z 2-3/D82-A&1C72<&:K-E ;C24&8:74-X1&67.-&1C.1&5:A232.-4&.<7 D-P77/2-AE&;C747&R7<4:-./21274&A7-7<.//0 4+,*&1:&:`7<&76:12:-./&4DRR:<1&1:&1C72< P<27-84&.-8&/:?78&:-74M&FD1&1C70&8:-X1 -73744.<2/0&L-:K&C:KE&,-8&F73.D47 1C70&3.-X1&873287&:-&1C7&F741M&6:41 7a327-1&K.0&1:&:`7<&4DRR:<1M&1C70&6.0 C:/8&:`&:-&8:2-A&:<&4.02-A&.-01C2-A&.1 .//E ;C24&b.-./0424&R.<./0424c&3.-&.`731 6D/12R/7&.<7.4&:P&5:A232.-4X&/2?74E&>7:R/7 K21C&1C24&R7<4:-./210&10R7&3.-&:?7<1C2-L 7?7-&1C7&46.//741&:P&873242:-4E&;C24 6.L74&1C76&P77/&2-7`7312?7&.-8&41D3LM 4:&7QC.D4178&F0&1C7&7-8/744&R.<.87&:P 1C:DAC14&2-&1C72<&62-8&1C.1&1C70 41<DAA/7&1:&A71&1C2-A4&8:-7E ;C7&A::8&-7K4&24&1C.1&5:A232.-4&8:-X1 C.?7&1:&41.0&41D3L&P:<&/:-AE&;C72< D-2UD7&41<7-A1C4&2-3/D87&7?7<01C2-A 1C70&-778&1:&RD//&1C7647/?74&:D1&:P&1C7 <D14&1C.1&1C70&:33.42:-.//0&P.//&2-1:E&W0 /7?7<.A2-A&1C72<&3<7.12?210&.-8&1C72< :R7-%62-878-744M&5:A232.-4&3.-&<7.3C 1C72<&PD//&R:17-12./&Z&F:1C&.4&1C2-L7<4 .-8&.4&C.RR0M&K7//%<:D-878&R7:R/7E !"#$%&"'()* +$,-%$(($( Logicians You May Know " Bill Gates Kristen Stewart !"#$%& !"#$ !"#$%! 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