{ 1 } - Virtues come with old age.
{ 2 } - We are born with the virtues.
{ 3 } - Virtues come with practice.
{ 4 } - Virtues are a gift from the gods.

If we want to be generous, for example, we need to push ourselves to do things for others; in time, generosity will become part of our lives. Those who say "I'm not a generous person -- that's just not the way I'm built" are avoiding responsibility. To a great extent, we can become the kind of persons that we want to be.