To make a mistake is only human; to persist in a mistake is idiotic.

Todos los hombres pueden caer en un error; pero sólo los necios perseveran en él

All men make mistakes.

All men make mistakes, but a good man yields when he knows his course is wrong, and repairs the evil. The only crime is pride.

The idiot is indeed the good man, but only because he doesn't know any better.

A man is responsible for his ignorance.

A man who has committed a mistake and doesn’t correct it, is committing another mistake.

To err is common
To all men, but the man who having erred
Hugs not his errors, but repents and seeks
The cure, is not a wastrel nor unwise.

an intelligent man cannot become anything seriously, and it is only the fool who becomes anything.

In order to make an error, a man must already judge in conformity with mankind.

Only a fool learns from his own mistakes. The wise man learns from the mistakes of others.

A man who prides himself on going in a straight line through life is an idiot who believes in infallibility.

Take these things to heart, my son, I warn you.
All men make mistakes, it is only human.
But once the wrong is done, a man
can turn his back on folly, misfortune too,
if he tries to make amends, however low he's fallen,
and stops his bullnecked ways. Stubbornness
brands you for stupidity - pride is a crime.

A person who doesn't learn from the past is an idiot, in my estimation.