Lie and Klein had quite different characters as humans and mathematicians: the algebraist Klein was fascinated by the peculiarities of charming problems; the analyst Lie, parting from special cases, sought to understand a problem in its appropriate generalisation.
Tumihaya at Klein ay lubos na iba't ibang karakter tulad ng mga tao at mathematicians: ang algebraist Klein ay nabighani sa peculiarities ng kahali-halina mga problema; ang Analyst humiga / magsinungaling, ng buhok mula sa mga espesyal na kaso, sought upang maunawaan ng isang problema sa kanilang nararapat na generalisation.