Reading Antifragile by Nassim Taleb was eye-opening for me. I turn to the concepts of the book whenever I feel unsure about a decision or opinion.
That would have to be… The Bible.
It's more full of wisdom and truth than any other book I've ever read. There's not even a close second IMO
Pulling Your Own Strings by Wayne Dyer gave me a lot of confidence. His other books have a spiritual bent to them, I believe (I haven't read them), but the above book is just straightfoward advice.
The one before, Your Erroneous Zones, has a similar vibe, more oriented to your own inner motivations.
The bible
Have you bashed out any newborn babies' brains on a rock today?
Chill.
The day has barely begun. Gotta go to the morning stoning first. Pushy people like you make us regular baby brain bashers look like weirdos.
Sorry. So at what point do we lust after our lovers, whose genitals are like those of donkeys and whose emission are like that of a horse?
I forgive you for posting that.
The Fountainhead by Ayn Rand. It's terrible and fascinating at the same time. What I took away from it is that there is an inherent value in things you build yourself and a moral right to own your creations. I know the book is flawed in many ways, but I still think it's an interesting read. Wouldn't exactly call it my bible, but I don't think any book fits that description.