Personal Science
There are a lot of other things we figure out during that time of life, as well. Basically, we are learning the rules of this new game we've been thrust into, called Life. Once certain lessons are learned, they can be internalized and you can stop testing them. Like gravity. It's pretty reliable for babies on earth. We take it for granted. In fact, if it isn’t learned and internalized, chances are that juvenile human will die.
...that when you spend time helping the truly broken—the ones who require more patience than seems reasonable—you walk away with two revelations: how much of yourself still works, and how vital the fragile thread of kindness is that holds people together.