Is it wise to buy gold and silver?
Yes, investing in physical precious metals is a very good investment. Take gold: no matter what the economy has done in the past 60 years, no matter how high inflation has been, the value of gold has always risen.
That is the main reason for people to invest in gold and silver: to protect themselves against inflation and loss of purchasing power.
In other words: is your money in gold and silver? Then you don't have to worry about losing your assets due to a bank crisis, for example. What's more: even then your capital will grow along with you.
These claims are well-founded by the historical returns on silver and gold. An example: in the period 2000-2014, gold yielded 222%. And the AEX? By only 4%. See also the graphs below.