Never allow anyone to rain on your parade and thus cast a pall of gloom and defeat on the entire day. Remember that no talent, no self-denial, no brains, no character, are required to set up in the fault-finding business. Nothing external can have any power over you unless you permit it. Your time is too precious to be sacrificed in wasted days combating the menial forces of hate, jealously, and envy. Guard your fragile life carefully. Only God can shape a flower, but any foolish child can pull it to pieces.
The consuming desire of most human beings is deliberately to plant their whole life in the hands of some other person. I would describe this method of searching for happiness as immature. Development of character consists solely in moving toward self-sufficiency.
When you do the wrong thing, knowing it is wrong, you do so because you haven't developed the habit of effectively controlling or neutralizing strong inner urges that tempt you, or because you have established the wrong habit and don't know how to eliminate them effectively.