他性格有点顽固，不容易接受别人的建议。

Tā xìnggé yǒudiǎn wángù, bù róngyì jiēshòu biérén de jiànyì.

He is a bit stubborn by nature and doesn’t easily accept others’ suggestions.

在讨论问题时，我们要坚持原则，但也不能太顽固。

Zài tǎolùn wèntí shí, wǒmen yào jiānchí yuánzé, dàn yě bùnéng tài wángù.

When discussing issues, we should stick to our principles, but we can’t be too stubborn.