He was considered to be a paragon of virtue.

他被认为是德善美的典范。

Moral beauty ought to be ranked above all other beauty.

德之美应列于其他美之。

I can testify to this man’s veracity and good character.

我可作证,此人诚实可靠,德良好。

I can certify to his good character.

我可证明他德好。

The responsibilities of a teacher lie not only in the inculcation of knowledge, but also in the setting of good examples and cultivating of virtues.

老师的责任不单是传授知识，更要树立良好榜样，培养学生的德。