How do you think of installing memories to human?

We often forgot some theories when we haven't had using them a while. I am thinking this, if we can install some kind of chemicals into human with codes in them, then we can have anything memorized in our brains permenently. First of before doing this, we need to wholly dissect the waves of how human brain interact and the process of how human memorizing things. And if we can find a way to deal with it, human might remember everything entirely and for good.