一个好的数学家是懒惰的，但要以建设性的方式。
释义：救助他人要在他们最危急的时候施以援手，施舍帮助要在他们最困厄的时候给予支持。
"I write because I cannot live without writing."
造纸行业有责任在环境管理方面发挥领导作用。
"The most beautiful people we have known are those who have known defeat, known suffering, known struggle, known loss, and have found their way out of the depths."