MANIFESTOS do not have a very good history... I believe that is an unfortunate choice of words. However, So Be It.
Here are a couple of "manifestos".
In the name of the best within you, do not sacrifice this world to those who are at its worst. In the name of the values that keep you alive, do not let your vision of people be distorted by the ugly, the cowardly, the mindless in those who have never achieved integrity. Do not lose your knowledge that our proper estate is an upright posture,
an intransigent mind and a step that travels unlimited roads. Do not let your fire go out, spark by irreplaceable spark, in the hopeless swamps of the approximate, the not-quite, the not-yet, the not-at-all. Do not let the hero in your soul perish, in lonely frustration for the life you deserved, but have never been able to reach. Check your road and the nature of your battle. The world you desired can be won, it exists, it is real, it's yours.
― Ayn Rand
Invictus
BY WILLIAM ERNEST HENLEY
Out of the night that covers me,
Black as the pit from pole to pole,
I thank whatever gods may be
For my unconquerable soul.
In the fell clutch of circumstance
I have not winced nor cried aloud.
Under the bludgeonings of chance
My head is bloody, but unbowed.
Beyond this place of wrath and tears
Looms but the Horror of the shade,
And yet the menace of the years
Finds and shall find me unafraid.
It matters not how strait the gate,
How charged with punishments the scroll,
I am the master of my fate,
I am the captain of my soul.