2 sentences

1. 他做事一向踏实，从不投机取巧。

   tā zuò​shì yī​xiàng tā​shi, cóng bù tóu​jī​qǔ​qiǎo.

   He has always been down-to-earth in his work and never takes shortcuts.

   Source: Dong Chinese Dictionary

2. 他待人向来蒙厚质朴，从不投机取巧。

   tā dài​rén xiàng​lái méng hòu zhì​pǔ, cóng bù tóu​jī​qǔ​qiǎo.

   He has always been honest and simple in his dealings with others, never resorting to trickery.

   Source: Dong Chinese Dictionary