Select all the correct answers. Which theme of Eugene O'Neill's Beyond the Horizon is reflected in this excerpt from act 1 of the play?

ROBERT: No, I oughtn't (Pointing to the horizon—dreamily) Supposing I was to tell you that it’s just Beauty that’s calling me, the beauty of the far off and unknown, the mystery and spell of the East which lures me in the books I’ve read, the need of the freedom of great wide spaces, the joy of wandering on and on—in quest of the secret which is hidden over there, beyond the horizon? Suppose I told you that was the one and only reason for my going?

A.
the value of reading books
B.
the value of traveling
C.
importance of following one's dreams
D.
importance of family values