The Power of the Mind

I have run across many things this week that have to do with the power
of the mind. Experiments where a placebo has almost as big an effect as
the medication.

As a single footstep will not make a path on the earth,
so a single thought will not make a pathway in the mind.
To make a deep physical path, we walk again and again.
To make a deep mental path, we must think over and over
the kind of thoughts we wish to dominate our lives.

- Henry David Thoreau