It is light grief that can take counsel.

Anonymous
Grief is the agony of an instant, the indulgence of grief the blunder of a life.

Benjamin Disraeli (1804 - 1881)
Waste not fresh tears over old griefs.

Euripides (484 BC - 406 BC)
The only cure for grief is action.

George Henry Lewes
Even his griefs are a joy long after to one that remembers all that he wrought and endured.

Homer (800 BC - 700 BC), The Odyssey
While grief is fresh, every attempt to divert only irritates. You must wait till it be digested, and then amusement will dissipate the remains of it.

Samuel Johnson (1709 - 1784)
Grief teaches the steadiest minds to waver.

Sophocles (496 BC - 406 BC), Antigone
The greatest griefs are those we cause ourselves.

Sophocles (496 BC - 406 BC), Oedipus Rex