Wer seine eigene Freiheit sichern will, muss selbst seinen Feind vor Unterdrückung schützen.

An avidity to punish is always dangerous to liberty. It leads men to stretch, to misinterpret, and to misapply even the best of laws. He that would make his own liberty secure, must guard even his enemy from oppression; for if he violates this duty, he establishes a precedent that will reach to himself. Thomas Paine. Paris, July, 1795.

Hij die zijn eigen vrijheid veilig wil stellen, moet zelfs zijn vijand tegen onderdrukking beschermen, want als hij die plicht schendt, schept hij een precedent dat op hemzelf terug zal slaan.

To secure ourselves against defeat lies in our own hands, but the
opportunity of defeating the enemy is provided by the enemy himself.

You can only protect your liberties in this world by protecting the other man's freedom. You can only be free if I am free.

If a man be the enemy of another from mistake and prejudice, as in the case of religious opinions, and sometimes in politics, that man is different to an enemy at heart with a criminal intention; and it is incumbent upon as, and it contributes also to our own tranquillity, that we

I knew as well as I knew anything that the oppressor must be liberated just as surely as the oppressed. A man who takes away another man’s freedom is a prisoner of hatred, he is locked behind the bars of prejudice and narrow-mindedness. I am not truly free if I am taking away someone else’s freedom, just as surely as I am not free when my freedom is taken from me. The oppressed and the oppressor alike are robbed of their humanity.

... no one is bound to live as another pleases, but is the guardian of his own liberty.

Only man can be an enemy for man; only he can rob him of the meaning of his acts and his life because it also belongs only to him alone to confirm it in its existence, to recognize it in actual fact as a freedom

And it is also immaterial that the intrusion was in aid of law enforcement. Experience should teach us to be most on our guard to protect liberty when the Government’s purposes are beneficent. Men born to freedom are naturally alert to repel invasion of their liberty by evil-minded rulers. The greatest dangers to liberty lurk in insidious encroachment by men of zeal, well meaning but without understanding. Olmstead v. United States, 277 U.S. 438 (1928) (Brandeis, J., dissenting), overruled by Katz v. United States, 389 U.S. 347 (1967).

"Experience should teach us to be most on our guard to protect liberty when the government's purposes are beneficial. Men born to freedom are naturally alert to repel invasion of their liberty by evil-minded rulers. The greater dangers to liberty lurk in insidious encroachment by men of zeal, well-meaning but without understanding." — Justice Louis Brandeis, Olmstead v. United States, 277 U.S. 479 (1928)

It is an undeniable privilege of every man to prove himself right in the thesis that the world is his enemy; for if he reiterates it frequently enough and makes it the background of his conduct he is bound eventually to be right.

We must beware of any attempt to make hatred in any form the basis of action. Most emphatically each of us needs to stand up for his own rights; all men and all groups of men are bound to retain their self-respect, and, demanding this same respect from others, to see that they are not injured and that they have secured to them the fullest liberty of thought and action. But to feed fat a grudge against others, while it may or may not harm them, is sure in the long run to do infinitely greater harm to the man himself.

Once the principle is admitted that it is the duty of the government to protect the individual against his own foolishness, no serious objections can be advanced against further encroachments.