In no one thing has man shown greater fertility of invention than in lighting; to nothing does he cling more tenaciously than to his devices for furnishing light. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
I suspect it would conduce to the happiness and welfare of all if each knew his allotment, and held to it as tenaciously as the martyr to his creed. 夏洛蒂·勃朗特.雪莉.