His main object was to make her think; and for the high purpose, chiefly but not exclusively, he employed verse.
The main obstacle to success he soon discovered to be Letty's exceeding distrust of herself.

I would not be mistaken to mean that she had too little confidence in herself; of that no one can have too little.
Self-distrust will only retard, while self-confidence will betray.

The man ignorant in these things will answer me, "But you must have one or the other." "You must have neither," I reply.

"You must follow the truth, and, in that pursuit, the less one thinks about himself, the pursuer, the better.

Let him so hunger and thirst after the truth that the dim vision of it occupies all his being, and leaves no time to think of his hunger and his thirst.