A slice of humble pie (Denny)...

Remember, you are just an extra in everyone else's play.

Frankilin Delano Roosevelt

This reminds me of another little saying, whose author I either do not know or have forgotten: "Remember that when you die, not everyone at the funeral will be sad."

Although humility is not the same thing as humiliation, it is the one virtue most human beings, by definition, lack.

Life is for each man a solitary cell whose walls are mirrors.

Eugene O'Neill

That's a pretty dark view of life, but, at least for some, it has a ring of truth about it...