The weakness of most of the big fish is that they are blind to the reality of life, to their own mortality.

Investigations, Intelligence & Risk Management
The weakness of most of the big fish is that they are blind to the reality of life, to their own mortality.
By assessing regularly what others can do for you and you for them you can ensure that those in your circle are actually there for positive reasons.
By fully understanding an environment you should be able to realistically assess the risks and work out if it’s really comfortable for you or not!