Unfortunately civility is hard to codify or legislate, but you know it when you see it. It's possible to disagree without being disagreeable.
Sandra Day O'ConnorSociety as a whole benefits immeasurably from a climate in which all persons, regardless of race or gender, may have the opportunity to earn respect, responsibility, advancement and remuneration based on ability.
Sandra Day O'ConnorThe unhappy persistence of both the practice and the lingering effects of racial discrimination ...is an unfortunate reality...and the government is not disqualified from acting in response to it.
Sandra Day O'ConnorThe purpose prong of the Lemon test requires that a government activity have a secular purpose. That requirement is not satisfied, however, by the mere existence of some secular purpose, however dominated by religious purposes... The proper inquiry under the purpose prong of Lemon, I submit, is whether the government intends to convey a message of endorsement or disapproval of religion.
Sandra Day O'Connor