How does the next paragraph end?

How to invest in silver
Decide when to buy silver.
Every investor wants to know the magic formula that will let him or her know when to buy or sell. Unfortunately, buying silver, like any other type of investing, is primarily educated guessing.
Over the past 100 years, the price of silver per troy ounce has ranged in (inflation-adjusted) price from about $4 to $106, with the current price sitting at about $15. This price happens to be quite close to the inflation adjusted price 100 years ago, in 1916.