All that happens to us is for our benefit if it is rightly used. What we have got we cannot change. Can we change our bodies, or our nationality? Can we change the color of the skin? But there are many things that can be changed, such as the nature, behavior, habits, etc., and we should therefore try to change what can be changed and live with what cannot be changed. This is wisdom!

Taken from the book "The Spider's Web, Vol I.", Chapter "Hope-The Foundation of Change", pg. 88, by Revered Chariji