“In the end, life makes victims of us all.”

Variant: Above all, be the heroine of your own life, not the victim.

Source: By the River Piedra I Sat Down and Wept

The Education of Henry Adams (1907)

"Science and Religion" (1939-1941), p. 22 http://books.google.com/books?id=Q1UxYzuI2oQC&lpg=PP1&pg=PA22#v=onepage&q&f=false
1950s, Out of My Later Years (1950)

Source: Ulysses (1842), l. 22-32
Context: How dull it is to pause, to make an end,
To rust unburnish'd, not to shine in use!
As tho' to breath were life. Life piled on life
Were all too little, and of one to me
Little remains: but every hour is saved
From that eternal silence, something more,
A bringer of new things; and vile it were
For some three suns to store and hoard myself,
And this gray spirit yearning in desire
To follow knowledge like a sinking star,
Beyond the utmost bound of human thought.

Variants (Many of MLKs' speeches were delivered many times with slight variants): An Individual has not started living fully until they can rise above the narrow confines of individualistic concerns to the broader concerns of humanity. Every person must decide at some point, whether they will walk in light of creative altruism or in the darkness of destructive selfishness. This is the judgment: Life's most persistent and urgent question is: 'What are you doing for others?'
As quoted in The Words of Martin Luther King, Jr. by Coretta Scott King, Second Edition (2011), Ch. "Community of Man", p. 3
1950s, Conquering Self-centeredness (1957)

Source: Crown Duel

Source: Island (1962)

Good Days (1934)