如果一种教义不是费解的，它就必须是含糊的，如果它既不费解也不含糊，它就必须是无法验证的。
The development of attention in childhood is a foundation for self-regulation and academic achievement.
全球金融合作的可持续性在于国家利益与系统稳定性的平衡。
我是一个非常私密的人。我不喜欢谈论我的个人生活。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.