What are the idioms to describe sharpening?

Serve the public, sharpen honor and pursue official business.

Make a name for yourself, sharpen your virtue and achieve fame.

Sharpen reputation, virtue and honor.

Blunt is to sharpen the world and make clumsy people work hard.

Pick up: engage in war; Sharpen: Sharpen. It is said that chickens grind their teeth again and then fight with each other. Later used to refer to continuing to work hard and persevere.

After polishing, the clean corners make the edges and corners more distinct.

Strengthen armor and sharpen weapons. Get ready for battle.

Sharpen your own needs and make "Sharpen your own needs". It is said that sharpening a knife is not a mistake for a woodcutter. Get ready and wait for the right time.

Also called "sharpening the bottom". Also called "grinding". ① Four grindstones with different textures and colors. 2 sharpen exercise.

Hone and learn from each other.

Be blunt [explanation] Drive a rotten horse and sharpen a blunt knife. It means reluctant to work hard. An imbecile horse; A blunt knife.

Stubborn and dull [explanation] spurs stupidity and sharpens stupidity. It is extremely difficult to forge ahead.