我觉得他的说法挺有道理的。

Wǒ juéde tā de shuōfǎ tǐng yǒu dàolǐ de.

I think what he is saying is reasonable.

老板觉得她说的话没有道理。

Lǎobǎn juéde tā shuō de huà méiyǒu dàolǐ.

The boss thinks what she said is senseless.

我爸爸常常跟我讲人生道理。

Wǒ bàba chángcháng gēn wǒ jiǎng rénshēng dàolǐ.

My father often discusses life principles with me.