What is marrow?

Famous quotes containing the word marrow:

“History is fond of her grandchildren, for it offers them the marrow of the bones, which the previous generation had hurt its hands in breaking.”
—Nikolai Gavrilovich Chernyshevsky (1828–1889)

““A young man in the dark am I
But a wild old man in the light
That can make a cat laugh, or
Can touch by mother wit
Things hid in their marrow bones
From time long passed away....””
—William Butler Yeats (1865–1939)

“Death is someone you see very clearly with eyes in the center of your heart: eyes that see not by reacting to light, but by reacting to a kind of a chill from within the marrow of your own life.”
—Thomas Merton (1915–1968)