"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."
Og Mandino