It is the duty of a student to get everything out of a teacher， and the duty of a teacher to get everything out of a student.

Be so good they can't ignore you.

The founders of a new colony, whatever Utopia of human virtue and happiness they might originally project, have invariably recognized it among their earliest practical necessities to allot a portion of the virgin soil as a cemetery, and another portion as the site of a prison.

我不是来追求完美的，我是来诚实的。