观天下书未遍，不得妄下雌黄。
出自北齐·颜之推《颜氏家训·勉学》。不得，不能、不可。雌黄，矿物名，可作颜料，古代用以涂改文字，后引申为信口更改、随便乱说。没有读够一定数量的书，对前人的见解没有彻底了解，是不能随便乱下结论、乱发议论的。书要多读、话要谨慎；应当谦虚向学，不可妄自尊大。
领导力不在于掌控，而在于照顾你所负责的人。
"Memory is a fragile thing, but it is also our most powerful tool for understanding the past."
I don’t think of myself as a classical artist or a pop artist. I just think of myself as an artist who sings.