Those that won't be counseled can't be helped.
Good counsel rejected returns to enrich the givers bosom.
Better Counsel comes overnight.
Good council has no price.
Give neither counsel or salt till you are asked for it.
— Proverb
The counsel you would have another keep, first keep yourself.
— Proverb
The best counselors are the dead.
— Proverb
All who consult on doubtful matters, should be void of hatred, friendship, anger, and pity.
— Sallust