"Trust in yourself" ... is that really a good idea? Maybe not. I think most of us would agree that we can't fully know and understand all things. Also, not only can we not accurately predict the future, our memories of the past are colored and warped by the mere passing of time. However, some still have a problem with statements like this:
Trust in the Lord with all your heart,
and do not lean on your own understanding.
In all your ways acknowledge him,
and he will make straight your paths.
- Proverb 3:5-6 (ESV)
So what does the latest thinking in cognitive neuroscience and neuroimaging have to say on the matter?
Don't Trust Your Brain!: Tim Mullett at TEDxUoN
"We usually believe that we're pretty good judges of ideas and options. It turns out that our brains may just not be wired to evaluate these sorts of things."