By doing nothing we learn to do ill. 懒散学为非。

By doing we learn. 经一事，长一智。

By falling we learn to go safely. 吃一堑，长一智。

By gambling¹ we lose both time and treasure, two things most precious to the life of man. 赌博使我们丢失时间和金钱，这两样人生最珍贵的东西。

By other''s faults, wise men correct their own. 他山之石，可以攻玉。

By reading we enrich² the mind; by conversation we polish it. 读书可以使我门的思想充实，谈话使其更臻完美。

By the hands of many a great work made light. 众擎易举。

By the side of sickness health becomes sweet. 和疾病相比较，才显得健康的可贵。

By the street of "Bye and bye" one arrives at the house of "Never". 迁延因循，一事无成。