3 sentences

1. 他一生清高，不愿与这喧闹的尘同流合污。

   tā yī​shēng qīng​gāo, bù yuàn yǔ zhè xuān​nào de chén tóng​liú​hé​wū.

   He remained noble and aloof throughout his life, refusing to be corrupted by the clamor of the secular world.

   Source: Dong Chinese Dictionary

2. 他为人清高，从不为了金钱和权力出卖原则。

   tā wéi​rén qīng​gāo, cóng bù wèi​le jīn​qián hé quán​lì chū​mài yuán​zé.

   He is a man of high integrity and never sells out his principles for money or power.

   Source: Dong Chinese Dictionary

3. 他那种清高的样子让人觉得很难亲近。

   tā nà zhǒng qīng​gāo de yàng​zi ràng rén jué​de hěn nán qīn​jìn.

   His aloof attitude makes him seem very difficult to get close to.

   Source: Dong Chinese Dictionary