A smart man makes a mistake, learns from it, and never makes that mistake again.But a wise man finds a smart man and learns from him how to avoid the mistake altogether.

Five minutes in an old book quickly reveals that most of what is being sold today as new insights into human behavior is merely the rediscovery of knowledge we have had for centuries.

Quantum Mechanics and General Relativity are both accepted as scientific fact even though they're mutually exclusive. Albert Einstein spent the second half of his life searching for a unifying truth that would reconcile the two.

The salability of an item can often be improved while the value itself remains unchanged.

Preparation, mastery, can help you overcome your fear, but mastery alone is not enough. There has to be something you want that’s worth more to you than your fear.

Embarrassment, or the risk of it, accompanies all your important choices.

The first step in exceeding your customer's expectations is to know those expectations.