Men do less than they ought, unless they do all they can. (Thomas Carlyle, 19th century Scottish philosopher and satirist)
No one can do everything, so is it sensible to give some effort here and more somewhere else, spreading our efforts widely? Carlyle’s statement is certainly a challenge to consider carefully how much we become involved in worthy activity. No doubt, it’s a matter of priority, but we certainly must do our best at whatever project we choose.
Whatever you do, work at it with all your heart (Colossians 3:23).