2 sentences for 在 (zài — lie in)

1. 所谓致知在格物。

   suǒ​wèi zhì​zhī zài gé​wù.

   The so-called extension of knowledge lies in the investigation of things.

   Source: Dong Chinese Dictionary

2. 打仗最重要的法则是兵在精而不在多。

   dǎ​zhàng zuì zhòng​yào de fǎ​zé shì bīng zài jīng ér bù zài duō.

   The most important rule in warfare is that the quality of troops matters more than their quantity.

   Source: Dong Chinese Dictionary