出自《周易·系辞》，杨国荣在著作中阐释其哲学意义

The trace is often more powerful than the original.

Love is life. All, everything that I understand, I understand only because I love.

"A literatura é a expressão máxima da liberdade humana."

Quality is never an accident; it's always the result of intelligent effort.

至今一切社会的历史都是阶级斗争的历史，即剥削阶级和被剥削阶级之间、统治阶级和被压迫阶级之间斗争的历史。