a word to the wise is sufficient(from one learn all)

Carefree

kick down the ladder(lack any sense of gratitude)

hold a snake and ride a tiger

as dry as sawdust

Sing without a word

white crows and horses with horns

in a low,muffled voice

have an eye to the main chance

too much paper work and meetings to attend to(red tape with mountains of documents and seas of meetings)

Writings are for converying truth.

fig. talented individuals in hiding; lit. hidden dragon, crouching tiger (idiom); concealed talent; Crouching Tiger, Hidden Dragon, movie by Ang Lee 李安

without any scruple

blasphemous talk(make deceitful statements (unfounded charges))

be utterly disheartened(be tired of earthly life with all ambitious blasted and all hopes dashed to pieces)

come to an eventual end(die a natural death)

be evergreen

leave a good name to posterity

have no bearing on the general situation(be of no account)

be a side issue(have no effect on the overall situation)