4 sentences

1. 我不必说服自己。

   wǒ bù​bì shuō fú zì​jǐ.

   I don’t need to convince myself.

   Source: CCMatrix

2. 你不必说服我。

   nǐ bù​bì shuō fú wǒ.

   You don't have to convince me.

   Source: OpenSubtitles

3. 他没有把这句话说完，但他其实不必说完。

   tā méi​yǒu bǎ zhè​jù​huà shuō wán, dàn tā qí​shí bù​bì shuō wán.

   He didn’t finish the sentence, but he didn’t really have to.

   Source: CCMatrix

4. 记住你不必说你为什么离开，只说你将要离开。

   jì zhu nǐ bù​bì shuō nǐ wèi​shén​me lí kāi, zhǐ shuō nǐ jiāng​yào lí kāi.

   Remember that you don’t have to say why you’re leaving, only that you are leaving.

   Source: CCMatrix