It is ignorance that causes most mistakes.

"Mistakes" is easy to judge when other do it and difficult to realize when we do it.

The very desire to seek the truth often causes people, who do not know how it should be sought correctly, to make judgements about things that they do not perceive and in that way they make mistakes.

Good judgment comes from experience, and a lot of that comes from bad judgment.

A mistake in judgment isn't fatal, but too much anxiety about judgment is.

Thinking is difficult, that’s why most people judge.

To understand error in judgment, we must understand both bias and noise.

We know less when we erroneously think we know than when we recognize that we don’t.

It's terrible when the one who does the judging judges things all wrong.

Most errors consist only in our not rightly applying names to things. For when someone says that the lines which are drawn from the center of a circle to its circumference are unequal, he surely understands (then at least) by a circle something different from what mathematicians understand. Similarly, when men err in calculating they have certain numbers in their mind and different ones on the paper. So if you consider what they have in mind, they really do not err, though they seem to err because we think they have in their mind the numbers which are on the paper. If this were not so, we would not believe that they were erring, just as I did not believe that he was erring whom I recently heard cry out that his courtyard had flown into his neighbor's hen, because what he had in mind seemed sufficiently clear to me.

And most controversies have arisen from this, that men do not rightly explain their own mind, or interpret the mind of the other man badly. For really, when they contradict one another most vehemently, they either have the same thoughts, or they are thinking of different things, so that what they think are errors and absurdities in the other are not.

People judge what they do not understand

Juger c'est, de toute évidence ne pas comprendre puisque, si l'on comprenait, on ne pourrait pas juger.

Nor is the people's judgment always true:
The most may err as grossly as the few.

A mistake constantly made by those who should know better is to judge people of the past by our standards rather than their own. The only way men or women can be judged is against the canvas of their own time.