What is a symbol or visual thing that could represent empathy?

What is a symbol animal usually used to represent strength, innocence, optimism and freedom?

• I don't mean a Chinese symbol or anything like that, I mean an actually living thing or object that's used to represent each thing, (A different thing for each one) since I'd like to get a small tattoo representing one or two of these things.

• Answer:

  You know how Hagrid's a half-giant, and his half-brother is a giant? Hagrid's half-brother symbolizes strength, innocence, and optimism. But not so much freedom, what with him being chained up all the time.