Umzobo wesazi ngeenkwenkwezi saseMelika kunye nombhali uCarl Sagan (1934 - 1996) ephethe imodeli yomhlaba weplanethi iMars, 1970. (Ifoto ngu-Hulton Archive / Getty Izithombe) UCarl Sagan wayengenguye umcebisi nangayiphi na indlela esiza kulisebenzisa ngayo igama. Umcebisi ngumntu onxibelelana naye rhoqo, kwaye uluhlobo lokufunda kubungcali babo. Kusenokwenzeka ukuba ndandikho kubukho bukaCarl Sagan amatyeli amane ebomini bam. Sasingaseli buddies. Ke, umntu unokuba nefuthe kuwe nokuba ayinguye umcebisi wakho. Banokuba nefuthe ngomzekelo. Kwaye mhlawumbi lolona hlobo lwempembelelo lubalaseleyo, kuba emva koko umntu akazami ukwenza into ukuze akonwabise-bakho phaya kwinto yabo. Uyabona into abayenzayo nendlela abaziphethe ngayo, kwaye uthi, ndifuna ukuziphatha ngale ndlela, okanye ndifuna ukuba nolo lubabalo phantsi koxinzelelo, okanye ndifuna ukuba nolo lwazi lwentsimi. 
UNeil deGrasse Tyson (Ifoto ngu-FOX ngokusebenzisa imifanekiso ka-Getty)
Umdla wam kwindalo iphela wawusekwe kakuhle ngaphambi kokuba ndidibane noCarl Sagan. Impembelelo yakhe kum yayiyinto yokuba wadibana nam kwaphela. Ngelo xesha lokuqala, kwisikolo samabanga aphakamileyo, ndingumntwana nje waseBronx, ndineminyaka eli-17 ubudala. Ndinesicelo kuCornell, phakathi kwezinye iikholeji. Iofisi yokwamkelwa eCornell, engaziwayo kum, yathumela isicelo sam eSagan kwaye yabuza, Ngaba ngulo mntu unomdla kuwe? Wandibhalela ileta, isayinwe ngesandla-ndiyabona ukuba unomdla kuCornell kwaye uyayithanda indalo iphela. Ukuba ungathanda ukuza uze ukhenketho kwikhampasi ndingavuya ukukubonisa ilebhu. UCarl Sagan! Ikaka engcwele. Ngokwenene yayinguCarl Sagan. Wayibhala le leta engatyhilekanga. Kwakungekho nto amele ayenze, kwakutheni ukuze akhathalele umntwana oneminyaka eli-17 ubudala waseBronx?
Ke ndiye ndaya phaya, kwaye udibana nam ngaphambili. NguMgqibelo; isikolo asikho kwiseshoni. Iiholide beziqalile. USagan undimemela elebhu, kwaye utyikitya enye yeencwadi zakhe kum. Khange ajonge, ujonge nje emva wabamba incwadi kwishelufa yakhe, kwaye yenye yeencwadi zakhe. Yayiyi-badass-ukufikelela nje umva kwaye ungajongi.
'USagan undimemela elebhu, kwaye utyikitya enye yeencwadi zakhe kum. Khange ajonge, ujonge nje emva wabamba incwadi kwishelufa yakhe, kwaye yenye yeencwadi zakhe. Yayiyimbonakalo embi , ukufikelela nje emva ungajongi nokujonga. '
Kwaye ke ekugqibeleni, kuyaqala ukuba likhephu, ibingoDisemba, ndikhwele ibhasi ukuya eCornell. Akulula ukukhwela ibhasi. Kwaye wathi, andazi ukuba ibhasi iza kuyenza na. Ubhale inombolo yakhe yasekhaya, wathi, Ukuba ibhasi ayiphumeleli, nditsalele umnxeba, uya kuchitha ubusuku nosapho lwam.
Ndathi, Ukuba ndikhe ndaduma ngokude njengale ndoda, kunyanzelekile ukuba ndibaphathe abafundi ababonisa umdla kwindalo iphela ngentlonipho nesidima andibonisileyo.
Kwaye ngalo mzuzu, wayengenguye umcebisi kuyo nayiphi na intsingiselo yemveli yelizwi; waye nje yena. Ke yayiyeyona mpembelelo yakhe inkulu kum.
Impembelelo elandelayo: Ndijonge amagama awakhethileyo, kunye namagama abhaliweyo, kunye nezalathiso ezikrelekrele kwizalathiso zenkcubeko yabantu. Obo bubungqina bento enokwenzeka kwindibano phakathi kwesayensi noluntu.
Kwaye ndacinga ngaphakathi kwam, kunokwenzeka ukuba abantu basabele ngale ndlela, kuloo mxholo, ngaloo nqanawa. Kwaye ndathi, Ukuba ndingaze ndikwazi ukuzisa indalo iphela eMhlabeni, andiyi kuyilibala into yokuba le yinto esele yenziwe.
UNeil deGrasse Tyson ngumlawuli weHayden Planetarium kwaye ubamba i-StarTalk kaNat Geo.
Nceda ufunde:
UChuck Todd kuTim Russert et al.
USenator uKirsten Gillibrand kumakhulu wakhe uPolly Noonan
Mnumzana Norman Foster kwiBuckminster Fuller
URichard Edelman kuyise uDaniel Edelman
