努力

great effort / to strive / to try hard

to make a great effort; to try hard

to exert / to strive

power / force / strength / ability / strenuously

to work together / to collaborate

assiduous / taking great pains

to try harder / to redouble one's efforts

to use one's best efforts to do sth (idiom)

if you are lazy in your prime, you'll be sorry in your old age

Bernoulli (Swiss mathematical family, including Johann (1667-1748) and Daniel (1700-1782))