There are numerous examples in the Bible of people who knew what they believed in and pursued it wholeheartedly despite the opinions of those around them. Noah would be a prime example - he built the ark at a time when the people didn’t even know what rain was. They mocked him and his family for building such a monstrosity of a boat. But Noah knew what he believed and he believed - even though he had never seen rain - that God was going to make it rain - a lot.
Abraham left his family and security to move to a land he didn’t know much about - but he believed God’s promises to make a great nation through him. I could easily continue adding to this list. The point is these men did great things by pursuing wholeheartedly the things they believed in.
There are also many examples in our world of people who understood the importance of standing up for something. Martin Luther King, Jr believed in equality wholeheartedly and stood up to a society which would have preferred for him to go away. Mother Theresa is probably the greatest example of unconditional love our society has ever had. No matter what people thought or how they treated her she moved forward and loved and did what she could to help ease suffering and pain. She believed in unconditional love.