I've found the following to be helpful in many situations and in many senses - slippers are made for walking too
"If it is peace you want, seek to change yourself, not other people. It is easier to protect your feet with slippers than to carpet the whole of the earth." not sure who said it Ghandi maybe?
"God grant me the serentity to accept things I cannot change, the courage to change the things I can and the wisdom to know the difference", Anon