If criticism is needed, criticize helpfully, never spitefully.

如果需要批评，就做有益的批评，绝不要怀有恶意。

youdao

Praise good work, regardless of who did it. If criticism is needed, criticize helpfully, never spitefully.

如果需要批评，也要善意的，不要恶意的。

youdao

The church has always been portrayed by Fellini in satirical terms (remember the "ecclesiastical fashion show" in "Roma, " with priests on roller skates?), but not spitefully, for Fellini seems never to have had a malicious bone in his body.

WSJ: 8?: A Flawed Filmmaker's Life Turned Into Art by Peter Cowie