Customers first, employees second, and shareholders third.
The very important thing you should have is patience.
EBay may be a shark in the ocean, but I'm a crocodile in the Yangtze River. If we fight in the ocean, we lose, but if we fight in the river, we win.
When I am myself, I am happy and have a good result.
You should learn from your competitor, but never copy. Copy and you die.
For ecommerce, the most important thing is trust.