Encourage him to read books that will open his heart, and free his mind. Noone does that anymore, noone  has an open mind, it seems to be presumed archaic. If you learn about many cultures, its more like you will be accepting of them. From Homer to Shakespeare to Dahl, minds have been shaped that have improved civilization.

  Encourage the development of imagination, if he can visualize the change, if he can imagine the strength in him, than he can make the change occur. He will imagine the answers. All books have authors, and every author has a lesson to teach.

Dont keep him from the negative, the heartaches. These are important for growth too.  Trial and error is a great educator, but some lessons are painful. Any knowledge can be used to benefit society, avoid over protecting him.