Where the defects are.

"If the lights in your house go out, what do you do? You check
your own home to see what is wrong; you don't blame your neighbor.
Likewise, when you feel defeated, examine your mental household for
defects. The defects exist in the mind, and nowhere else. There might
be an outside crisis, but your reaction is always _your_ reaction.
There is a way to be different from how you now are."