What are some good idioms?

What idioms are there with refined words?

Concentrate,

Sincere unity,

Broad and profound,

Make great efforts,

Keep improving,

Full of energy,

A better army and simpler management,

Cheer up,

Exhausted,

Save your strength,

Calculate carefully,

In a trance,

Short and pithy,

Despair,

sincerely

Seriously, the stone is open,

Exquisite,

Dragon and horse spirit,

Carefully carved,

Be good at diligence,

People are happy when they are happy,

Soldiers are good, not many,

Full of energy,

Rejuvenate,

Exquisite ecstasy,

An excellent soldier and a powerful general,

To explore subtle truths, to explore profound knowledge.