I think we have a unique culture at Amazon that encourages both risk-taking and long-term thinking.

The first fruit of this imagination - and the first lesson of the social science that embodies it - is the idea that the individual can understand his own experience and gauge his own fate only by locating himself within his period, that he can know his own chances in life only by becoming aware of those of all individuals in his circumstances.

The key to security is not to trust anyone, including yourself.