“It is also good to love: because love is difficult.”

“Love is something difficult and it is more difficult than other things because in other conflicts nature herself enjoins men to collect themselves, to take themselves firmly in the hand with all their strength, while in the heightening of love the impulse is to give oneself wholly away.”

“To love is good, too: love being difficult. For one human being to love another: that is perhaps the most difficult of all our tasks, the ultimate, the last test and proof, the work for which all other work is but preparation...Love is a high inducement to the individual to ripen, to become something in himself, to become world for himself for another's sake, it is a great exacting claim upon him, something that chooses him out and calls him to vast things.”

“It is good to be solitary, for solitude is difficult; that something is difficult must be a reason the more for us to do it.”

“Where something becomes extremely difficult and unbearable, there we also stand already quite near its transformation.”

“Be of good courage all is before you, and time passed in the difficult is never lost...What is required of us is that we live the difficult and learn to deal with it. In the difficult are the friendly forces, the hands that work on us.”

“For one human being to love another human being: that is perhaps the most difficult task that has been given to us, the ultimate, the final problem and proof, the work for which all other work is merely preparation.”