4 sentences

1. 那个书店的老板很博学。

   nà gè shū​diàn de lǎo​bǎn hěn bó​xué.

   The owner of that bookstore is very knowledgeable.

   Source: Dong Chinese Dictionary

2. 博学的人往往精通三坟五典。

   bó​xué de rén wǎng​wǎng jīng​tōng sān fén wǔ diǎn.

   Erudite people are often well-versed in the 'Three Graves and Five Classics'.

   Source: Dong Chinese Dictionary

3. 真正的智者不仅博学，而且谦虚。

   zhēn​zhèng de zhì​zhě bù​jǐn bó​xué, ér​qiě qiān​xū.

   A true sage is not only knowledgeable but also humble.

   Source: Dong Chinese Dictionary

4. 他是一个非常有内涵的人，博学又谦逊。

   tā shì yī gè fēi​cháng yǒu nèi​hán de rén, bó​xué yòu qiān​xùn.

   He is a person of great substance, both knowledgeable and humble.

   Source: Dong Chinese Dictionary