Whatever harm the evil may do, the harm done by the good is the most harmful harm.

Narrow souls I cannot abide; There's almost no good or evil inside.

There is an old illusion. It is called good and evil.

It takes no more time to see the good side of life than it takes to see the bad.

The more we come out and do good to others, the more our hearts will be purified, and God will be in them

A positive state of mind is not merely good for you, it benefits everyone with whom you come into contact, literally changing the world.