Nine in the second place means

The abyss is dangerous.

One should strive to attain small things only.

When we are in danger we ought not to attempt to get out of it immediately, regardless of circumstances; at first we must content ourselves with not being overcome by it. We must calmly weigh the conditions of the time and be satisfied with small gains, because for the time being a great success cannot be attained. A spring flows only sparingly at first, and tarries for some time before it makes its way into the open.