"Two fears should follow us through life. There is the fear that we shan’t prove worthy in the eyes of someone who knows us at least as well as we know ourselves. That is the fear of God. And there is the fear of Man—the fear that men won’t understand us and we shall be cut off from them” (Introduction to King Jasper).
"What’s worth living for is worthy dying for. What’s worth succeeding in is worth failing in” ("On Emerson").
(Both selections can be found within Selected Prose of Robert Frost, edited by Hyde Cox and Edward Connery Lathem)