Lewis Carroll: Doing

“But I don’t want to go among mad people," Alice remarked.
"Oh, you can’t help that," said the Cat: "we’re all mad here. I’m mad. You’re mad."
"How do you know I’m mad?" said Alice.
"You must be," said the Cat, "or you wouldn’t have come here.”

Lewis Carroll book Alice's Adventures in Wonderland

Source: Alice in Wonderland

People , Cats , Help , Madness

“Alice asked the Cheshire Cat, who was sitting in a tree, “What road do I take?”

The cat asked, “Where do you want to go?”

“I don’t know,” Alice answered.

“Then,” said the cat, “it really doesn’t matter, does it?”

Lewis Carroll book Alice's Adventures in Wonderland

Variant: One day Alice came to a fork in the road and saw a Cheshire cat in a tree. ‘Which road do I take?’ she asked. ‘Where do you want to go?’ was his response. ‘I don’t know,’ Alice answered. ‘Then,’ said the cat, ‘it doesn’t matter.
Source: Alice's Adventures in Wonderland

Cats , Tree

“One of the deep secrets of life is that all that is really worth the doing is what we do for others.”

Lewis Carroll

This is a paraphrase of statement in a thank you note from Carroll to a childhood friend, the actress Ellen Terry, published in Ellen Terry, Player in Her Time (1997), p. 126 https://books.google.com/books?id=2PkzZ9KaRlwC&lpg=PA126&vq=%22do%20for%20others%22&pg=PA126#v=snippet&q=%22do%20for%20others%22&f=fals by Nina Auerbach: "... and so you have found out that secret — one of the deep secrets of Life — that all, that is really worth the doing, is what we do for others?"
Disputed

Life , Secret

“Why it's simply impassible!
Alice: Why, don't you mean impossible?
Door: No, I do mean impassible. Nothing's impossible!”

Lewis Carroll

Source: Alice's Adventures in Wonderland & Through the Looking-Glass

“Do you know, I always thought unicorns were fabulous monsters, too? I never saw one alive before!"

Well, now that we have seen each other," said the unicorn, "if you'll believe in me, I'll believe in you.”

Lewis Carroll

Source: Alice's Adventures In Wonderland And Through The Looking Glass

“I do not know if 'Alice in Wonderland' was an original story — I was, at least, no conscious imitator in writing it — but I do know that, since it came out, something like a dozen story-books have appeared, on identically the same pattern.”

Lewis Carroll book Sylvie and Bruno

Preface
Sylvie and Bruno (1889)
Context: I do not know if 'Alice in Wonderland' was an original story — I was, at least, no conscious imitator in writing it — but I do know that, since it came out, something like a dozen story-books have appeared, on identically the same pattern. The path I timidly explored believing myself to be 'the first that ever burst into that silent sea' — is now a beaten high-road: all the way-side flowers have long ago been trampled into the dust: and it would be courting disaster for me to attempt that style again.

Books , Appearance

“Now, here, you see, it takes all the running you can do, to keep in the same place. If you want to get somewhere else, you must run at least twice as fast as that!”

Lewis Carroll

Source: Alice Through the Looking Glass