Is it true that you don't know?

Yes.

Only if you don't really APPRECIATE IT (or them, more appropriately) to begin with!

You can either show REAL LOVE AND CONCERN for those around you, and be truly RICH AND FULFILLED, or you can be SELFISH AND STUPID, and end up A PAUPER WITH NOTHING!

Yes, it is true

so true!!

very true***

It all depends from person to person as how careful he is.

Not now, perhaps when I was younger - am I finally growing up a bit??

YES.
WHEN SOMEONE YOU KNOW DIES.

I know what I've got.

that seems to be true for me