The whole point of taking pictures is so that you don't have to explain things with words.
The best things happen when you just happen to be somewhere with a camera.
Covering a historic event is perfectly legitimate. It's not sneaking into somebody's boudoir... These people belong to history, and not to record that if you have the opportunity would be wrong.
You don't study photography. You do it.
I dislike landscapes. I only like people, and plastic flowers.
Be sure to take the lens cap off before photographing.