Be precise. A lack of precision is dangerous when the margin of error is small.
No consensus of men can make an error erroneous. We can only find or commit an error, not create it. When we commit an error, we say what was an error already.
When a scientist is ahead of his times, it is often through misunderstanding of current, rather than intuition of future truth. In science there is never any error so gross that it won't one day, from some perspective, appear prophetic.
It is sometimes well for a blatant error to draw attention to overmodest truths.
I did it the stupid way, through trial and error.
Religion is not a popular error; it is a great instinctive truth, sensed by the people, expressed by the people.
A philosopher is, no doubt, entitled to examine even those distinctions that are to be found in the structure of all languages... in that case, such a distinction may be imputed to a vulgar error, which ought to be corrected in philosophy.
To try to correct imbalances with trade restrictions is a grave error.
If the individual, or heretic, gets hold of some essential truth, or sees some error in the system being practiced, he commits so many marginal errors himself that he is worn out before he can establish his point.
How is an error possible in mathematics?
A small error in the former will produce an enormous error in the latter.
Observe that it is a great error to believe that all mediums of art are not closely tied to their time.
Knowledge is ancient error reflecting on its youth.
There are two ways to write error-free programs; only the third one works.
Science can purify religion from error and superstition. Religion can purify science from idolatry and false absolutes.