Reliable

Children are taught to respond to and respect authorities right from the day they are born. It keeps them alive in the best circumstances.

But along the way it can become a liability.

No one source is altogether supremely reliable.

Anything to do with people can be skewed.

People delight in quoting sources that suit their own agendas. Harm is often done backed up by zealots twisting the truth to fit their actions..

It is not enough to trust anyone or anything completely. Nothing exists that cannot be filtered through a haze of misrepresentation for whatever reason.

Hard critical thinking is the first and most reliable skill an intelligent person can have. Using this, they can evaluate all the rest.