文学是社会的镜子，反映其美德和恶习。
"Literature is the mirror of society, reflecting its virtues and vices."
The past is a puzzle, and we are all trying to piece it together.
The only way to learn mathematics is to do mathematics.
译文：人生百年，无论大小事，兴盛与衰败，都如同一场梦般转瞬即逝。