History shows totalitarian regimes fall when brave people rise up. As the future of Hong Kong, time is on the side of Joshua Wong, Agnes Chow, and Ivan Lam.Three prominent leaders of Hong Kong’s pro-democracy movement were sentenced to prison this week for leading a protest last year. Joshua Wong received 13 and a half months; Agnes Chow, 10 months; and Ivan Lam, seven months. Wong has already been in prison a few times as the result of his activism.They are young. Lam is 26. Wong is 24. Chow turned 24 this past Dec. 3, the day after she received...