It is unwise to be too sure of one’s own wisdom. It is healthy to be reminded that the strongest might weaken and the wisest might err.
Freedom is not worth having if it does not connote freedom to err.
I shall never be a heretic; I may err in dispute, but I do not wish to decide anything finally; on the other hand, I am not bound by the opinions of men.
The wisest of the wise may err.
For to err in opinion, though it be not the part of wise men, is at least human.
If you have a little extra parking, I err on the side of getting rid of it in favor of having some more greenery.