2 sentences for 害人 (hài​rén — harm)

1. 他为了贪财而害人，真是造孽。

   tā wèi​le tān​cái ér hài​rén, zhēn shì zào​niè.

   He harmed people for money; it's truly a sin.

   Source: Dong Chinese Dictionary

2. 这种自私的行为最终会害人害己。

   zhè zhǒng zì​sī de xíng​wéi zuì​zhōng huì hài​rén hài​jǐ.

   This kind of selfish behavior will eventually harm others and oneself.

   Source: Dong Chinese Dictionary