"A good deed, "said the prophet Mohammed, "is one that brings a smile of joy to the face of another."
Why will doing a good deed every day produce such astounding efforts on the doer?
Because trying to please others will cause us to stop thinking of ourselves: the very
thing that produces worry and fear and melancholia.

There is indeed a certain sense of gratification when we do a good deed that gives us inward satisfaction, and a generous pride that accompanies a good conscience…These testimonies of a good conscience are pleasant; and such a natural pleasure is very beneficial to us; it is the only payment that can never fail. “On Repentance

if you do one good deed your reward usually is to be set to do another and harder and better one.

What you do for yourself, any gesture of kindness, any gesture of gentleness, any gesture of honesty and clear seeing toward yourself, will affect how you experience your world. In fact, it will transform how you experience the world. What you do for yourself, you’re doing for others, and what you do for others, you’re doing for yourself.

a thing is good and pleasant only because it is connected to Him. Use it apart from its Source, and it will come to taste bitter. Since the good thing is His, how can it remain worth loving if you forsake Him to get it?

It is pleasure that lurks in the practice of every one of your virtues. Man performs actions because they are good for him, and when they are good for other people as well they are thought virtuous: if he finds pleasure in helping others he is benevolent; if he finds pleasure in working for society he is public-spirited; but it is for your private pleasure that you give twopence to a beggar as much as it is for my private pleasure that I drink another whiskey and soda. I, less of a humbug than you, neither applaud myself for my pleasure nor demand your admiration.

One advantage resulting from good actions is that they elevate the soul to a disposition of attempting still better; for such is human weakness, that we must place among our good deeds an abstinence from those crimes we are tempted to commit.

The interior joy we feel when we have done a good deed is the nourishment the soul requires.

Doing something is expressing our own nature. We do not exist for the sake of something else. We exist for the sake of ourselves.

"A good will is good not because of what it effects, or accomplishes, not because of its fitness to attain some intended end, but good just by its willing, i.e. in itself; and, considered by itself, it is to be esteemed beyond compare much higher than anything that could ever be brought about by it in favor of some inclinations, and indeed, if you will, the sum of all inclinations. Even if by some particular disfavor of fate, or by the scanty endowment of a stepmotherly nature, this will should entirely lack the capacity to carry through its purpose; if despite its greatest striving it should still accomplish nothing, and only the good will were to remain (not of course, as a mere wish, but as the summoning of all means that are within our control); then, like a jewel, it would still shine by itself, as something that has full worth in itself".

Goodness is about what you do. Not who you pray to.

It’s friendship when you do good things for each other. It’s showing concern and consideration.

Every human being should regard himself as if he were exactly balanced between innocence and guilt. Simultaneously he should regard the world as being in the same case. It follows then that if he performs one good deed, he has weighted the scales in favour of both himself and of the whole world, and thus brought about salvation both for himself and for all the inhabitants of the world.

Genuinely good manners are, after all, essentially a way of moderating one’s own egotism, often in the service of considering the egos of others. Even if it’s done mainly for show, it’s still a start.