科学的进步不是一条直线,而是一个螺旋,总是在前进,又总是回到起点。
To be a philosopher is not merely to have subtle thoughts, nor even to found a school, but so to love wisdom as to live according to its dictates.
追求极致性价比
爱是世界上最强大的力量。
Our greatest weakness lies in giving up. The most certain way to succeed is always to try just one more time.