When children haven't developed the ability of control, "let children do whatever they want" is contrary to the concept of freedom.
当儿童还没有发展起控制能力的时候，“让儿童想干什么就干什么”是与自由观念相违背的。
你不需要成为摇滚明星才能改变世界。
The challenge in computer science is to bridge the gap between the theoretical models and practical applications.