The ultimate touchstone of constitutionality is the Constitution itself and not what we have said about it. - Felix Frankfurter

In the first place, lawyers better remember they are human beings, and a human being who hasn't his periods of doubts and distresses and disappointments must be a cabbage, not a human being. That is number one.

The indispensable judicial requisite is intellectual humility.

A license cannot be revoked because a man is redheaded or because he was divorced, except for a calling, if such there be, for which redheadedness or an unbroken marriage may have some rational bearing. If a State licensing agency lays bare its arbitrary action, or if the State law explicitly allows it to act arbitrarily, that is precisely the kind of State action which the Due Process Clause forbids.