Who said “When they come downstairs from their Ivory Towers, idealists are very apt to walk…”?

“Our ideals are our better selves.”

“I'm an idealist. I don't know where I'm going, but I'm on my way.”

“If you are going to build something in the air it is always better to build castles than houses of cards.”

“An idealist is one who, on noticing that a rose smells better than a cabbage, concludes that it is also more nourishing.”

“A map of the world that does not include Utopia is not worth even glancing at, for it leaves out the one country at which Humanity is always landing.”

“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.”

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

“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.”