“I do not think much of a man who is not wiser today than he was yesterday.”
“A man should never be ashamed to own that he has been in the wrong, which is but saying in other words that he is wiser today than he was yesterday.”
“You should never be ashamed to admit you have been wrong. It only proves you are wiser today than yesterday”
“If you realize you aren't so wise today as you thought you were yesterday, you're wiser today.”
“When you come to see you are not as wise today as you thought you were yesterday, you are wiser today.”
“I thought to myself: I am wiser than this man; neither of us probably knows anything that is really good, but he thinks he has knowledge, when he has not, while I, having no knowledge, do not think I have.”