"I confess that I do not understand the principle on which the power to fix a minimum for the wages of women can be denied by those who admit the power to fix a maximum for their hours of work. I fully assent to the proposition that here as elsewhere the distinctions of the law are distinctions of degree, but I perceive no difference in the kind or degree of interference with liberty, the only matter with which we have any concern, between the one case and the other. The bargain is equally affected whichever half you regulate…. It will need more than the Nineteenth Amendment to convince me that there are no differences between men and women, or that legislation cannot take those differences into account."

“Deep-seated preferences cannot be argued about — you cannot argue a man into liking a glass of beer — and therefore, when differences are sufficiently far reaching, we try to kill the other man rather than let him have his way. But that is perfectly consistent with admitting that, so far as appears, his grounds are just as good as ours.”

“Detached reflection cannot be demanded in the presence of an uplifted knife.”

“The power to tax is not the power to destroy while this Court sits.”

“When twenty years ago a vague terror went over the earth and the word socialism began to be heard, I thought and still think that fear was translated into doctrines that had no proper place in the Constitution or the common law. Judges are apt to be naif, simple-minded men, and they need something of Mephistopheles. We too need education in the obvious—to learn to transcend our own convictions and to leave room for much that we hold dear to be done away with short of revolution by the orderly change of law.”

“The general rule, at least, is that while property may be regulated to a certain extent, if regulation goes too far it will be recognized as a taking.”

“Holmes' Dissenting Opinion, Abrams vs. United States”