Did John Brown help or harm the antislavery cause?

And intervening opportunity is an example of

Ben can’t wrestle in this week’s match unless he loses two pounds. he decides to take a nap instead of exercising. this is an example of wasting time getting distracted allowing others to set goals

Elias needs to practice the piano, but instead he sends over 100 texts to his friends. this is an example of wasting talent getting distracted allowing other to set goals