In formal English speeches, people like to use repeating structures like these. In normal spoken English, you might list actions like this:

I've learned to take risks and be adventurous.

But in more formal English, you can repeat "to":

I've learned to take risks and to be adventurous.

Do the same thing when you list two or more things that start with a preposition like "for". In normal spoken English:

It's important for us to set a positive example for our children, our peers, and the community.

In a formal speech this would become:

It's important for us to set a positive example for our children, for our peers, and for the community.