I like the following quote from Justice Washington in McFadden v. The Exchange, which was a circuit opinion addressing whether the admiralty jurisdiction could hear a claim that an American vessel was illegally seized by France. It nicely combines the confidence that judges must display in their decisions with the healthy skepticism that keeps them open-minded:
I am fully sensible of the delicate nature of the question which is here decided, and I feel cheered by reflecting that the error of my judgment, if I have committed one, can and will be corrected by a superior tribunal; for surely a question of such national importance as this is, ought not, and I hope will not, rest upon the decision of this court. I can at the same time truly declare that if I could be so wicked as to decide this case different from the opinion which I must sincerely entertain respecting it, my humble genius and talents would not enable me to give one single reason which my conscience or judgment could approve.
Sure enough, Washington was reversed by the Supreme Court in an opinion that he joined.