我们都有能力改变，但我们必须首先相信这是可能的。
We are all capable of change, but we have to believe it's possible first.
不要靠馈赠去获得朋友，你必须奉献你诚挚的爱，学会怎样用正当的方法来赢得别人的心。
The true monument is not the building, but the memory it leaves behind.
"We are all in the gutter, but some of us are looking at the stars."
Mathematics is the most beautiful and most powerful creation of the human spirit.
建筑应该是安静的，而不是喧闹的。