异教信仰

例句：

1. 1. Atheists believe in the existence of God but reject its existence as a fact.
   无神论者相信上帝的存在，但否认其作为事实的存在。
2. 2.The atheist philosopher argues that there is no objective truth to be found in the world.
   这位无神论哲学家认为世界上没有客观真理可言。
3. 3. Many atheists are also agnostics, believing in the existence of God but not being able to prove it.
   许多无神论者也是不可知论者，他们相信上帝的存在，但不能证明这一点。