What is the deeper meaning of the quote, "Whoso would be a man...the suffrage of the world," in "Self-Reliance"?

Here is the full quote:

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Whoso would be a man, must be a nonconformist.
He who would gather immortal palms must not be hindered by the name of goodness, but
must explore if it be goodness. Nothing is at last sacred but the integrity of our own
mind. Absolve you to yourself, and you shall have the suffrage of the
world.

This quote from
Emerson's essay, "Self-Reliance," is saying:

In order to be
a man—a grown up—he must be willing to turn his back on the
world regardless of what the world expects.

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Whoso would be a man, must be a
nonconformist.

To be
remembered, a man must gather "immortal palms," and must not be held back by the "name
of goodness."

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He who would gather immortal palms must not be
hindered by the name of goodness, but must explore if it be
goodness.

Nothing is at last
sacred but the integrity of our own mind. Absolve you to yourself, and you shall have
the href="http://www.merriam-webster.com/dictionary/suffrage">suffrage of the
world.

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Integrity is born in a person's mind, and nothing
else is sacred unless you absolve yourself to who you are. In this way, you will have
the support of the world, of
mankind...

Emerson states
that to believe your own thoughts, and to know that what is true for you in your private
heart is true for all men—that is genius.