Peace cannot be achieved through violence, it can only be attained through understanding.
At a certain age, death becomes familiar to you-or a loss becomes familiar-the tragedies that are more commonplace in life.
Once I'd reached the point where I could squirrel away more than 30 digits a minute in memory palaces, I still only sporadically used the techniques to memorize the phone numbers of people I actually wanted to call. I found it was just too simple to punch them into my cell phone.