"It will be cheering to know that many people are skilful chess- players,though in many instances their brains,in a general way,compare unfavourably with the cogitative faculties of a rabbit." James Mortimer
What is your favorite chess quote of all time?

"It often happens that a player is so fond of his advantageous position that he fails to transpose to a winning endgame." Samuel Reshevsky

Not my favourite, but certainly the one I found the most amusing at the time...
"I do feel that at the moment I am the biggest threat to Carlsen." - Hikaru Nakamura
"The Smith-Morra is a way of telling the opponent, your Sicilian can blow me, this is 1 0, you hole" - vonson
"The only challenge in that game was typing that last insult before he resings" (sic) - vonson
vonson(1838)[52] kibitzes: let me explain why that was a bad move vonson(1838)[52] kibitzes: 1) it sucks vonson(1838)[52] kibitzes: 2) aesthetically displeasing vonson(1838)[52] kibitzes: 3) lacks foresight vonson(1838)[52] kibitzes: 4) against the 1 commandment in the bible vonson(1838)[52] kibitzes: 5) MATE {Game 52 (vonson vs. ireallysck) ireallysck checkmated} 1-0
All by vonson on a chess playing site

Chess is not for the faint-hearted; it absorbs a person entirely. To get to the bottom of this game, he has to give himself up into slavery. Chess is difficult, it demands work, serious reflection and zealous research. -- Wilhelm Steinitz But when it is so freely asserted that Morphy’s style was all genius and inspiration throughout, while the play of modern masters is all book and study, I would take leave to answer frankly that just the very reverse can be proved in the only part of the game in which knowledge and study can be of much use and in which a test of the assertion can be applied, namely in the openings. For Morphy possessed the most profound book knowledge of any master of his time, and he never in his practice introduced a single novelty, whereas since his day the books have had to study the players.’ -- steinitz

Paraphrase of Botvinnik: Something like...
If music is the beauty of sound and science is the beauty of thought, then CHESS is the beauty of logic.

I have two:
Chess is a sea in which a gnat may drink and an elephant may bathe.
An Indian proverb
Chess, like love, like music, has the power to make men happy.
Dr. Seigbert Tarrasch
“Modern Chess is too much concerned with things like
Pawn structure. Forget it, Checkmate ends the game”
(Nigel Short)