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?" <br class="br">Disputed

“If I had a world of my own, everything would be nonsense. Nothing would be what it is, because everything would be what it isn't. And contrary wise, what is, it wouldn't be. And what it wouldn't be, it would. You see?”

Lewis Carroll

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

“Only the insane equate pain with success."
"The uninformed must improve their deficit, or die."
_Cheshire Cat”

Lewis Carroll

Source: Alice's Adventures in Wonderland & Other Stories

“There is a place, like no place on earth. A land full of wonder, mystery, and danger. Some say, to survive it, you need to be as mad as a hatter. Which, luckily, I am.”

Lewis Carroll

“Cat: Where are you going?
Alice: Which way should I go?
Cat: That depends on where you are going.
Alice: I don’t know.
Cat: Then it doesn’t matter which way you go.”

Lewis Carroll book Alice's Adventures in Wonderland

Source: Alice in Wonderland

“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

“Where should I go?" -Alice. "That depends on where you want to end up." - The Cheshire Cat.”

Lewis Carroll

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

“If you don't know where you are going, any road will get you there.”

Lewis Carroll

“If you want to inspire confidence, give plenty of statistics”

Lewis Carroll

it does not matter that they should be accurate, or even intelligible, so long as there is enough of them.
Three Years in a Curatorship, By One Whom It Has Tried, 1886

“What may I do?”

Lewis Carroll

at length I cried,
Tired of the painful task.
The fairy quietly replied,
And said "You must not ask."
My Fairy
Useful and Instructive Poetry (1845)

“Fair stands the ancient Rectory,
The Rectory of Croft,
The sun shines bright upon it,
The breezes whisper soft.
From all the house and garden
Its inhabitants come forth,
And muster in the road without,
And pace in twos and threes about,
The children of the North.”

Lewis Carroll

Lays of Sorrow No. 2, opening lines
The Rectory Umbrella

“Went to the new Church both morning and afternoon, and read service in the afternoon. I got through it all with great success, till I came to read out the first verse of the hymn before the sermon, where the two words ‘strife strengthened,’ coming together, were too much for me, and I had to leave the verse unfinished.”

Lewis Carroll

31 August 1862
Diaries

“O bitter is it to abide
In weariness alway:
At dawn to sigh for eventide,
At eventide for day.
Thy noon hath fled: thy sun hath shone:
The brightness of thy day is gone:
What need to lag and linger on
Till life be cold and gray?”

Lewis Carroll Three Sunsets and Other Poems

The Valley of the Shadow of Death (1868)
Three Sunsets and Other Poems (1898)