You cannot stop destructive actions by others, but you can stop your own destructive reactions to them
Bitterness is the outcome of a wrong mental movement - the attempt to force external events to conform to internal fantasy. The cure is to see fantasy as fantasy, which will reveal it as neither necessary nor rewarding.
Resistance to the disturbance is the disturbance.
Happiness is not the acquisition of anything; it's the understanding of something.
To change what you get you must change who you are.
If heaven existed as a physical building on earth, human beings would remodel it to make it right.