Why is Rails changing the case of initial letter of words in my text?

问题

When I display strings in my UI, Rails 3.2 is changing this:

"10020 Main Street"

to

"10020 main street"

How do I avoid this?

Thanks in advance!

来源：https://stackoverflow.com/questions/17264053/why-is-rails-changing-the-case-of-initial-letter-of-words-in-my-text