There is no need to make claims that religion and reason are necessarily at odds with eachother, well unless religion necessarily has an earthly authority over men.

In any event, I always enjoy reading that Adams quote … here are a few more quotes on the “use of reason” by our Nation’s Founders/Framers

“We have abundant reason to rejoice that in this Land the light of truth and reason has triumphed over the power of bigotry and superstition … In this enlightened Age and in this Land of equal liberty it is our boast, that a man’s religious tenets will not forfeit the protection of the Laws, nor deprive him of the right of attaining and holding the highest Offices that are known in the United States.
– George Washington, letter to the members of the New Church in Baltimore, January 27, 1793.”

“We hold it for a fundamental and undeniable truth “that religion, or the duty which we owe our Creator, and the manner of discharging it, can be directed only by reason and conviction, not by force or violence.” The religion, then, of every man must be left to the conviction and conscience of every man: and that it is the right of every man to exercise it as these may dictate.
– James Madison, A Memorial and Remonstrance Against Religious Assessments, addressed to the Virginia General Assemby, June 20, 1785.”

“And let us reflect that, having banished from our land that religious intolerance under which mankind so long bled and suffered, we have yet gained little if we countenance a political intolerance as despotic, as wicked, and capable of as bitter and bloody persecutions…. error of opinion may be tolerated where reason is left free to combat it…. I deem the essential principles of our government…. Equal and exact justice to all men, of whatever state or persuasion, religious or political; … freedom of religion, freedom of the press, and freedom of person under the protection of the habeas corpus, and trial by juries impartially selected.
– Thomas Jefferson, First Inaugural Address, March 4, 1801.”