Someone during general conference said this. I think he was quoting President Monson, and I think the actual quote is “The future is as bright as your faith.”
The actual quote–in my limited experience–is 100% wrong. It adds to the confusion of hope and faith (which are separate and individual) without really helping the hearer understand what is meant.
Faith is necessary, of course. But if the future is to be bright, faith does not provide the light. It provides the why, not the means.
Hope provides the light. When languishing in darkness, faith can exist (for me it always did), but I was completely without hope. I had no light because I had no hope. Faith provided cognitive understanding of what God could do, but it provided no expectation that He would.