善
A good world needs knowledge， kindliness， and courage； it does not need a regretful hankering after the past or a fettering of the free intelligence by the words uttered long ago by ignorant men.
In the part of this universe that we know there is great injustice， and often the good suffer， and often the wicked prosper， and one hardly knows which of those is the more annoying.
To know good and evil is not enough； one must also do them.
Ethics is the general enquiry into what is good.
Kindness is the highest form of virtue.
Happiness is secured through virtue； it is a good attained by man's own will.
Good can exist without evil， whereas evil cannot exist without good.