古希腊哲学家，西方哲学的重要奠基者。
我知道我一无所知。I know that I know nothing.
我知道我一无所知。
I know that I know nothing.
未经审视的人生不值得过。The unexamined life is not worth living.
未经审视的人生不值得过。
The unexamined life is not worth living.