Good and evil don't come from what you feel, but from what you do. The same is true for a reasonable and caring person — their true worth isn't in their emotions, but in their actions.
As virtue and wickedness consist not in passion, but in action; so neither doth the true good or evil of a reasonable charitable man consist in passion, but in operation and action.
The things that trouble us exist outside of us. They know nothing about themselves and can't tell us anything about themselves. What judges them, then? Our mind does.
The things themselves that affect us, they stand without doors, neither knowing anything themselves nor able to utter anything unto others concerning themselves. What then is it, that passeth verdict on them? The understanding.