A towel is the most massively useful thing an interstellar hitchhiker can have

Don’t panic

Humans have a habit of continually staying and repeating the very very obvious, as in it’s a nice day, or you’re very tall

Things are not always what they seem

Careless talk costs lives, but the full scale of the problem is not always appreciated

The history of every major galactic civilization tends to pass through three distinct and recognizable phases, those of survival, inquiry, and sophistication, otherwise known as the how, why, and where phases