Only puny secrets need protection, big discoveries are protected by public incredulity.

The greatest barrier between two 'souls' is just but a single secret.

An administrator in a bureaucratic world is a man who can feel big by merging his non-entity in an abstraction. A real person in touch with real things inspires terror in him.

For as little as a thousand dollars, you can open an account at Schwab. I mean, it's not a big barrier to entry.

Incredulity is the wisdom of the fool

A big barrier is knowing what is out there.