There is nothing about what you do that is 100 percent secure.
There is nothing about what you have that cannot be taken from you.
There is nothing about what you desire that cannot change.
Do you disagree with these statements? To me they seem beyond disagreement—not because I’m so wise and profound, but because the claims they make seem clear and warranted. As far as I can tell—and I’ve thought about this a great deal and talked to hundreds of people in all walks of life about this very issue—these three statements are solid, universal descriptions of what it means to be human.— The Truest Thing about You, chapter 2
Pretty much sums up the human condition, doesn't it?