Bertrand Russell

When you hate, you generate a reciprocal hate. When individuals hate each other, the harm is finite; but when great groups of nations hate each other, the harm may be infinite and absolute. Do not fall back upon the thought that those whom you hate deserve to be hated. I do not know whether anybody deserves to be hated, but I do know that hatred of those whom we believe to be evil is not what will redeem mankind.

Genesis 50:20, NIV

You intended to harm me, but God intended it for good to accomplish what is now being done, the saving of many lives.

Jean-Paul Sartre

Never believe that anti-Semites are completely unaware of the absurdity of their replies. They know that their remarks are frivolous, open to challenge. But they are amusing themselves, for it is their adversary who is obliged to use words responsibly, since he believes in words. The anti-Semites have the right to play. They even like to play with discourse for, by giving ridiculous reasons, they discredit the seriousness of their interlocutors. They delight in acting in bad faith, since they seek not to persuade by sound argument but to intimidate and disconcert. If you press them too closely, they will abruptly fall silent, loftily indicating by some phrase that the time for argument is past.

The non-logic of fascism

Master Yoda

Fear leads to anger. Anger leads to hate. Hate leads to suffering.

Friedrich Nietzsche

Whoever fights monsters should see to it that in the process he does not become a monster. And if you gaze long enough into an abyss, the abyss will gaze back into you.

Francis Bacon

He that will not apply new remedies, must expect new evils: for Time is the greatest innovator: and if Time, of course, alter things to the worse, and wisdom and counsel shall not alter them to the better, what shall be the end?

Hermann Goering - Nazi Reichsmarshall and Luftwaffe-Chief (1946)

Naturally, the common people don't want war; neither in Russia nor in England nor in America, nor for that matter in Germany. That is understood. But, after all, it is the leaders of the country who determine the policy and it is always a simple matter to drag the people along, whether it is a democracy or a fascist dictatorship or a Parliament or a Communist dictatorship.

All you have to do is tell them they are being attacked and denounce the pacifists for lack of patriotism and exposing the country to danger. It works the same way in any country.