Who said “Most people sell their souls, and live with a good conscience on the proceeds.”?

“The one thing in the world, of value, is the active soul.”

“It matters not how strait the gate, How charged with punishments the scroll; I am the master of my fate: I am the captain of my soul.”

“We know now that the soul is the body, and the body the soul. They tell us they are different because they want to persuade us that we can keep our souls if we let them make slaves of our bodies.”

“Great souls endure in silence.”

“The soul never thinks without a picture.”

“People say that life is the thing, but I prefer reading.”

“The test of a vocation is the love of the drudgery it involves.”

“Thank Heaven, the sun has gone in, and I don't have to go out and enjoy it.”

“What music is more enchanting than the voices of young people, when you can't hear what they say?”

“I cannot forgive my friends for dying; I do not find these vanishing acts of theirs at all amusing.”

“How many of our daydreams would darken into nightmares if there seemed any danger of their coming true!”