The Visitor Center has sculptured panels lining the outside wall with these quotes carved above them.

AND HAVING THUS CHOSEN OUR COURSE
WITHOUT GUILE AND WITH PURE PURPOSE
LET US RENEW OUR TRUST IN GOD

TO ALL WHICH MAY ACHIEVE AND CHERISH
A JUST AND LASTING PEACE AMONG OURSELVES
AND WITH ALL NATIONS

LABOR IS THE GREAT SOURCE FROM WHICH NEARLY
ALL IF NOT ALL HUMAN COMFORTS AND
NECESSITIES ARE DRAWN

SURELY EACH MAN HAS A STRONG MOTIVE
NOW TO PRESERVE OUR LIBERTIES AS EACH HAD
THEN TO ESTABLISH THEM

AND THAT GOVERNMENT OF THE PEOPLE BY THE PEOPLE
AND FOR THE PEOPLE SHALL NOT PERISH FROM THE EARTH

WE MUST NOT BE ENEMIES - THROUGH PASSION
MAY HAVE STRAINED IT MUST NOT BREAK OUR
BONDS OF AFFECTION

IT WILL HAVE BEEN PROVED THAT AMONG FREE MEN
THERE CAN BE NO SUCCESSFUL APPEAL FROM THE
BALLOT TO THE BULLET

HAVE FAITH THAT RIGHT MAKES MIGHT AND IN THAT
FAITH LET US TO THE END DARE TO DO OUR
DUTY AS WE UNDERSTAND IT

I HOLD THAT IN CONTEMPLATION OF UNIVERSAL
LAW AND OF THE CONSTITUTION THE UNION
OF THESE STATES IS PERPETUAL