seo – multiple external links to high quality sites


I have a page that links to about 70+ high-quality websites.

The page looks like this:

a href link to website #1 - info about the site (~20 words)
a href link to website #2 - info about the site (~20 words)
a href link to website #3 - info about the site (~20 words)
...

I’m afraid maybe Google will penalize me for that. should I “nofollow” these links?
Sorry for my English.