Below is a link to an article from Forbes on 3 dangerous cliches in business.
Here they are in a nutshell. Be sure to check out the entire article:
1. Gold always goes up.
2. In the long-term, stocks always outperform every other asset category.”
3. Real estate always goes up
Well, as you might have guessed, never say "never" and never say "always."
https://blogs.forbes.com/panosmourdoukoutas/2011/08/03/three-dangerous-investment-cliches/