And to the parents themselves, as to other animals, the sight of their young ones will prove a great incentive to bravery. 柏拉图.理想国.
The greatest incentive in modern times to the production of inventions is governmental protection. 威廉·亨利·杜利特.世纪发明.
Governmental Protection the Greatest Incentive. 威廉·亨利·杜利特.世纪发明.
I have often felt that Mr. Edison got himself purposely into trouble by premature publications and otherwise, so that he would have a full incentive to get himself out of the trouble. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
Hughes was rescued from destruction, and has become the property of the Pratt Institute, of Brooklyn, to whose thousands of technical students it is a constant example and incentive. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
There is also the effect on the parents, with whom, as with other animals, the presence of their young ones will be the greatest incentive to valour. 柏拉图.理想国.
And so was added a further incentive to the adventure. 埃德加·赖斯·巴勒斯.人猿泰山.
There was an attempt to abolish _profit_ altogether, the rude incentive of most human commerce since the beginning of society. 赫伯特·乔治·威尔斯.世界史纲.
The onward flow of inventions may be interrupted, if not materially stayed, by the cessation of some of the causes and incentives which now give them life. 威廉·亨利·杜利特.世纪发明.
No other art was spurred to activity by such strong incentives, and none received the same encouragement and reward for its development. 威廉·亨利·杜利特.世纪发明.
Joy, mirth, vanity, and kindness are all incentives to this desire; as well as music, dancing, wine, and good cheer. 戴维·休谟.人性论.