Socrates said even more when he denied that he was not a wise man. That is God alone! Incidentally, he left nothing in writing. His pupil Plato, who studied with him for 10 years, not only wrote down his teachings, but also continued his teachings.
This continued questioning has had far-reaching consequences to this day. The philosopher Jaspers said that an indispensable prerequisite of our philosophizing is to always keep Socrates in mind, the example of open-ended questioning and research.
The philosopher Popper (Austrian-British philosopher, 1902-1994) put it like this:
“All our knowledge is conjectural knowledge and can have no final certainty”.
