Idioms expressing personality traits

Self-righteous,

Give up yourself for others,

Single-minded,

Self-knowledge,

Nobody's watching,

Help others,

Put yourself in front of others,

Arrogance,

Take the lead,

Fear of death,

Indomitable spirit,

Skynet is very long,

Sit and look at the sky,

Leave no trace,

Get carried away,

Outstanding,

The law of the jungle,

Hearing and vision,

Like-minded,

United as one,

Two-faced,

Eight immortals crossing the sea,

Frog in the well,

Unity is strength,

Save money,

Unique,

Go back on one's word,

World-famous,

Rare,

Every detail is clear.