Building a castle is difficult. Defending and maintaining it is harder still.

You should always stay hungry. Stay hungry, so you can eat.

In the modern world of business, it is useless to be a creative, original thinker unless you can also sell what you create.

Assume you have 90 seconds with a new user before they decide to use your app or delete it.

In preparing for battle I have always found that plans are useless, but planning is indispensable.