Expression: See the world through rose-colored glasses

If you see the world through rose-colored glasses, it means that you always see things in a positive way.
You could also see a person this way, or a situation.
Although many people think that it's good to see things through rose-colored glasses, others argue that it's unrealistic to see everything this way all the time.
What do you think?

(This image is by Salvador Dali.)