“It always seems impossible until it's done.”

Source: Demian (1919), p. 123
Context: People with courage and character always seem sinister to the rest. It was a scandal that a breed of fearless and sinister people ran around freely, so they attached a nickname and a myth to these people to get even with them, to make up for the many times they had felt afraid.

As quoted in A Dictionary of Thoughts: Being a Cyclopedia of Laconic Quotations from the Best Authors of the World, both Ancient and Modern (1908) by Tyron Edwards, p. 101

15 July 1944; Variant translations:
It's really a wonder that I haven't dropped all my ideals, because they seem so absurd and impossible to carry out. Yet I keep them, because in spite of everything I still believe that people are really good at heart.
I keep my ideals, because in spite of everything I still believe that people are really good at heart.
I simply can't build my hopes on a foundation of confusion, misery, and death...and yet...I think...this cruelty will end, and that peace and tranquility will return again.
Source: The Diary of a Young Girl (1942 - 1944)
Context: It's difficult in times like these: ideals, dreams and cherished hopes rise within us, only to be crushed by grim reality. It's a wonder I haven't abandoned all my ideals, they seem so absurd and impractical. Yet I cling to them because I still believe, in spite of everything, that people are truly good at heart. It's utterly impossible for me to build my life on a foundation of chaos, suffering and death. I see the world being slowly transformed into a wilderness, I hear the approaching thunder that, one day, will destroy us too, I feel the suffering of millions. And yet, when I look up at the sky, I somehow feel that everything will change for the better, that this cruelty too shall end, that peace and tranquility will return once more. In the meantime, I must hold on to my ideals. Perhaps the day will come when I'll be able to realize them!

As quoted in Dictionary of Quotations from Ancient and Modern, English and Foreign Sources (1893) by James Wood, p. 11