A Quote by Leon Battista Alberti

A common error of ignorance is to maintain that what one does not know does not exist. — © Leon Battista Alberti
A common error of ignorance is to maintain that what one does not know does not exist.
A church that does not exist to reclaim heathenism, to fight evil, to destroy error, to put down falsehood, a church that does not exist to take the side of the poor, to denounce injustice and to hold up righteousness, is a church that has no right to be. Not for yourself, O church, do you exist, any more than Christ existed for Himself.
Tolerance does not...do anything, embrace anyone, champion any issue. It wipes the notes off the score of life and replaces them with one long bar of rest. It does not attack error, it does not champion truth, it does not hate evil, it does not love good.
A man is never astonished that he doesn't know what another does, but he is surprised at the gross ignorance of the other in not knowing what he does.
Systems of religious error have been adopted in times of ignorance. It has been the interest of tyrannical kings, popes, and prelates to maintain these errors. When the clouds of ignorance began to vanish and the people grew more enlightened, there was no other way to keep them in error but to prohibit their altering their religious opinions by severe persecuting laws. In this way persecution became general throughout Europe.
When ignorance does not know something, it says that what it does not know is stupid.
Between knowledge of what really exists and ignorance of what does not exist lies the domain of opinion. It is more obscure than knowledge, but clearer than ignorance.
I maintain that there is no common language or medium of understanding between people of education and without it - between those who judge of things from books or from their senses. Ignorance has so far the advantage over learning; for it can make an appeal to you from what you know; but you cannot re-act upon it through that which it is a perfect stranger to. Ignorance is, therefore, power.
Why does one exist? That's not my problem. One does exist. The thing to do is to take no notice but go at it on the run and to keep on going right on until you die.
An error does not become truth by reason of multiplied propagation, nor does truth become error because nobody sees it.
When I hear theists and atheists pontificating on how they know God does or does not exist, I can only smile at the irrationality and, yes, vanity of the notion.
Only ignorance! only ignorance! how can you talk about only ignorance? Don't you know that it is the worst thing in the world, next to wickedness? -- and which does the most mischief heaven only knows. If people can say, `Oh! I did not know, I did not mean any harm,' they think it is all right.
When we do not know the truth of a thing, it is good that there should exist a common error which determines the mind of man, as, for example, the moon, to which is attributed the change of seasons, the progress of diseases, etc. For the chief malady of man is a restless curiosity about things which he cannot understand; and it is not so bad for him to be in error as to be curious to no purpose.
If god does not exist, one loses nothing by believing in him anyway, while if he does exist, one stands to lose everything by not believing.
It is one thing to describe an interview with a gorgon or a griffin, a creature who does not exist. It is another thing to discover that the rhinoceros does exist and then take pleasure in the fact that he looks as if he didn't.
Absolute freedom does not exist; what does exist is the freedom to choose anything you like and then commit yourself to that decision.
Man loves liberty, even if he does not know that he loves it. He is driven by it and flees from where it does not exist.
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