Don’t try to catch a falling safe.

The market is always right.

Worry about what you can control. Ignore what you can’t.

Don’t get greedy.

The Asian and European markets can be used as a possible guide to get an idea of which direction the US market is likely to go in. For example, if the Nikkei is down 3%, the DAX is down 2.3% then there is a strong possibility the US Futures and stocks will end up down overall. The US futures will have been trading down in their overnight session with Asia/Europe aswell, so there could be an immediate rally at the 9am open before moving down further.