纯粹
"The truth is rarely pure and never simple."
The joy of solving a mathematical problem is unparalleled; it is a moment of pure intellectual triumph.
The truth is rarely pure and never simple.
The truth is rarely pure and never simple.
The truth is rarely pure and never simple.
The truth is rarely pure and never simple.
The truth is rarely pure and never simple.
"The truth is rarely pure and never simple."
The truth is rarely pure and never simple.
"The truth is rarely pure and never simple."
"The truth is rarely pure and never simple."
"The truth is rarely pure and never simple."
"The truth is rarely pure and never simple."
"The truth is rarely pure and never simple."
The truth is rarely pure and never simple.
The truth is rarely pure and never simple.
The truth is rarely pure and never simple.
The truth is rarely pure and never simple.
"The truth is rarely pure and never simple."