唯一存在的限制是你自己设定的。
The only limits that exist are the ones you place on yourself.
The teacher should not teach as if he were pouring knowledge into an empty vessel, but rather as if he were lighting a fire.
The writer must believe that what he is doing is the most important thing in the world. And he must hold to this illusion even when he knows it is not true.
在俄罗斯，法律的严厉性因其不必执行而得到补偿。
"In war, there are no winners, only survivors."
The greatest mistake you can make in life is to be continually fearing you will make one.