It is easy to break a thief outside, but difficult to break a thief inside. What do you mean?
There are two paths in life: one is called mental calendar and the other is called experience. Calendars lead the experience and enrich the calendar. If the heart is young, even through ups and downs, life and the world are not old; If you are old, even if you experience peace, life will enter a famine year. In fact, life is not getting old gradually, but getting old instantly. If the heart dies, everything is quiet; If the heart continues, the road is endless.