for the last one, that's the whole story of Socrates being the wisest man because unlike others he knew the bounds of his knowledge: "I seem, then, in just thi

for the last one, that's the whole story of Socrates being the wisest man because unlike others he knew the bounds of his knowledge: "I seem, then, in just this little thing to be wiser than this man at any rate, that what I do not know I do not think I know either." https://en.wikipedia.org/wiki/I_know_that_I_know_nothing https://en.wikipedia.org/wiki/I_know_that_I_know_nothing