Friedrich Nietzsche said this quote
“ How can we “find ourselves” again? How can man “know himself”? He is a thing obscure and veiled. If the hare has seven skins, man can cast from him seventy times seven skins, and not be able to say: “Here you truly are; there is skin no more.”Also this digging into oneself, this straight, violent descent into the pit of one’s being, is a troublesome and dangerous business to start. You may easily take such hurt, that no doctor can heal you. And what is the point: since everything bears witness to our essence — our friendships and enmities, our looks and greetings, our memories and forgetfulnesses, our books and our writing! ”