My favorite tea quotes are,
"一人得其神 两人得其韵 三人得其味" - one person gets its holiness, two persons get its vibe, three persons get its taste. Famous quote floated in Chaozhou tea drinking communities, meaning when drinking tea, fewer persons are better. Traditional Chaozhou Gongfu teaset offer one pot and three ping-pong cups. More people will break its mood.
"禅茶一味" - Zen and tea have the same taste. A very famous quote as well.
"吃茶去" - sort of like "have a tea"..not possible to correctly translate. A famous story with a Zhaozhou (not Chaozhou) monk..that his apprentices asked him many question, the master (monk) didn't say a word but "吃茶去- Chi Cha Qu". There is a famous teashop named Ggik Da Geo (Korean pronunciation of 吃茶去) in Korea as well.
and the last "Tea doesn't cheat you, but it's people who cheat", a quote by Puerh expert Chen Zhi-tong..it just remained my memory
and there are many others, just not popped out of my brain at the moment...if anyone can add self-favorite/self-made(?) quotes, please do share