Faith and belief are the root of all evil.

It is obvious if you look at the core definitions:

• belief is the uncritical acceptance of a premise when no evidence for or against it exists or is immediately available.
• faith is the uncritical acceptance of a premise despite the existence of evidence that invalidates it.

Both of these are used to make people ignore reality in favour of fantasies and lies. Because if something was a verifiable fact grounded in reality, it would require neither faith nor belief.