“You have only always to do what is right.
It will become eaiser by practice, and you enjoy
in the midst of your trials the pleasure
of an approving conscience.”
-Robert E. Lee
This quote is saying it is your duty to do what is right at all times, no matter what the others are doing around you. It may be hard once you start to get your mindset on acting nice, but once you have the outcomes of it will make you a better person in the future. Once you have mastered doing the right thing, good things are bound to follow, such as opputunies, raises, or promotions. But the main reward will never be pyhsical, it will always be mental; the good feeeling you get after helping someone is what you are striving for.