Would you fight a battle if you're not sure you could win?

What I thought I could do is write religious books interpreting the sacred scriptures of every religious tradition on earth in an attempt to change the culture of each country and minimize religious corruption.

People will learn the religion promotes love and not hate, peace and not violence, forgiveness and not revenge, patience and not greed.

I just know I might not be able to do this alone, and it might not reap total results in my lifetime due to how big the project is.

Would you fight a battle if you're not sure you could win?
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