In daily life we experience suffering more often than pleasure. If we are patient, in the sense of taking suffering voluntarily upon ourselves, even if we are not capable of doing this physically, then we will not lose our capacity for judgment. We should remember that if a situation cannot be changed, there is no point in worrying about it. If it can be changed, then there is no need to worry about it either, we should simply go about changing it.
–His Holiness the 14th Dalai Lama, from The Dalai Lama’s Little Book of Inner Peace (Element)