“There is no tyranny in the world more hateful than that of ideas.”
Recalled by Walter Starkie from a conversation he had with Unamuno, as related in the Epilogue of Unamuno http://books.google.com/books?id=u8DG-eCTtM4C&lpg=PR1&dq=Unamuno&pg=PA240#v=onepage&q=%22There%20is%20no%20tyranny%20in%20the%20world%20more%20hateful%20than%20that%20of%20ideas%22&f=false.
Context: There is no tyranny in the world more hateful than that of ideas. Ideas bring ideophobia, and the consequence is that people begin to persecute their neighbors in the name of ideas. I loathe and detest all labels, and the only label that I could now tolerate would be that of ideoclast or idea breaker.
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Miguel de Unamuno 199
19th-20th century Spanish writer and philosopher 1864–1936Related quotes

Der Angriff (The Attack), (6 December 1931), quoted in Wolfgang Venohr’s book: Documents of German existence: 500 years of German national history 1445-1945, Athenäum Verlag, 1980, p. 291, In German: „Der Idee der NSDAP entsprechend sind wir die deutsche Linke. Nichts ist uns verhaßter als der rechtsstehende nationale Besitzbürgerblock https://historyuncensored.wixsite.com/history-uncensored/historical-quotes
1930s

Optimism
Poetry quotes, Poems of Pleasure (1900)
Context: I find a rapture linked with each despair,
Well worth the price of anguish. I detect
More good than evil in humanity.
Love lights more fires than hate extinguishes,
And men grow better as the world grows old.

“Why should you love him whom the world hates so?
Because he love me more than all the world.”

“Tyranny cannot defeat the power of ideas.”
As quoted in the Fighting the Fires of Hate: America and the Nazi Book Burnings exhibit at the United States Holocaust Memorial Museum (13 April 2003) http://www.ushmm.org/museum/press/archives/detail.php?category=10-publicprograms&content=2003-04-13

“Love commingled with hate is more powerful than love. Or hate.”
On Boxing (1987)

“Personally, I stick to my idea that we are watching the birth, more than the death, of a World.”
Letter from Peking (Summer 1940), quoted in The Last European War : September 1939/December 1941 (1976) by John Lukacs, p. 515
Context: Personally, I stick to my idea that we are watching the birth, more than the death, of a World. The scandal for you, is that England and France should have come to this tragedy because they have sincerely tried the road of peace. But did they not precisely make a mistake on the true meaning of "peace"? Peace cannot mean anything but a HIGHER PROCESS OF CONQUEST. … The world is bound to belong to its most active elements. … Just now, the Germans deserve to win because, however bad or mixed is their spirit, they have more spirit than the rest of the world. It is easy to criticize and despise the fifth column. But no spiritual aims or energy will ever succeed, or even deserve to succeed, unless it is able to spread and keep spreading a fifth column.

Source: You Shall Know Our Velocity!

“hate isn't healthy, it damages the hater more than the one who's hated!”
Source: Liar's Game