那些愿意为了安全而放弃自由的人,既得不到安全,也得不到自由。
Mathematics is the foundation upon which we build our understanding of the world, and it is through this understanding that we can solve the most complex problems.
人心充满私欲,所以危险;道心符合天理,所以精妙。
认证计划不仅仅是木制品上的贴纸;它们代表了对我们星球的承诺。