The key to successful investing is to have a clear understanding of the market.

The best way of learning about anything is by doing.

在商业中，如果你不前进，你就在落后。没有停滞不前的余地。

We're not going to run out of ammunition.

There is a stubbornness about me that never can bear to be frightened at the will of others. My courage always rises at every attempt to intimidate me.