Perhaps you do not know what that means. It means that, as you are at school, whether you really like going or not, you determine to make the very best you can of it, and that you do not make yourself and everybody else wretched by sulking and grumbling about it, and wishing school was done, and wondering why your father sends you there, and asking leave to look at the clock in the other room, and so on.
Used availability for Edward Everett Hale's How To Do It