Investing is like
remodeling your house
While remodeling a house, you can demolish!
While building onto a house, you can get rid of the parts of the rooms that you don't like. When it comes to investing, you can easily loose your money.
You can build on!
When it comes to a house, you can build on! When it comes to investing, you can gain more money!
What about when you keep it the same?
When you keep your house the same, you aren't adding nor taking away from your home. With investing, you can not gain money at all by the stock shifting.