2 sentences

1. 你无所不知吗？

   nǐ wú​suǒ​bù​zhī ma?

   Do you know everything?

   Source: OpenSubtitles

2. 理性的人知道自己的时间有限，并且意识到自己不可能无所不知。

   lǐ​xìng de rén zhī​dao zì​jǐ de shí​jiān yǒu​xiàn, bìng​qiě yì​shi dào zì​jǐ bù​kě​néng wú​suǒ​bù​zhī.

   Rational people know that their time is limited and realize that they cannot know everything.

   Source: CCMatrix