“Loss is nothing else but change, and change is Nature’s delight.”
Marcus Aurelius (Roman emperor, best known for his Meditations on Stoic philosophy, AD 121-180)

“We never understand how little we need in this world until we know the loss of it.”
James Matthew Barrie (Scottish Dramatist and Novelist best known as the creator of Peter Pan, 1860-1937)

“Death is not the greatest loss in life. The greatest loss is what dies inside us while we live.”
Norman Cousins (American Essayist and Editor, long associated with the Saturday Review. 1912-1990)

“Real loss only occurs when you lose something that you love more than yourself.”
Unknown

“Waste not fresh tears over old griefs.”
Euripides

“Grief teaches the steadiest minds to waver.”
Sophocles

“There is no grief which time does not lessen and soften.”
Cicero

“Tears are the silent language of grief.”
Voltaire

“He that conceals his grief finds no remedy for it.”
Turkish Proverb

“The bitterest tears shed over graves are for words left unsaid and deeds left undone.”
Harriet Beecher Stowe.