John Hall Gladstone Professions : Chemist Born : March 7, 1827 Died : October 6, 1902 Browse All Authors Famous Quotes by John Hall Gladstone To comprehend a man's life, it is necessary to know not merely what he does but also what he purposely leaves undone. There is a limit to the work that can be got out of a human body or a human brain, and he is a wise man who wastes no energy on pursuits for which he is not fitted; and he is till wiser who, from among the things that he can do well, chooses and resolutely follows the best. John Hall Gladstone wise brain men To comprehend a man's life, it is necessary to know not merely what he does but also what he purposely leaves undone. John Hall Gladstone doe time men Similar Authors Auguste Laurent chemist August Wilhelm von Hofmann chemist August Kekule chemist Ascanio Sobrero chemist Antoine Lavoisier chemist Antoine Bechamp chemist All Authors