In your own opinion, what is the best way to save for our future, Investing in business or Saving money in the banks? Why?

Investing in business ofcorse but not forgetting to keep profits in the Bank 

Business. Growth of money in business is unlimited as long as the business is handled properly, effectively and with a success in mind. In Banks, money doesn't grow that much as it only earns a fixed interest in a period of time.